r/Hyperthyroidism

I generaly eat healthy (low carb diet) and occasionally (once or twice per month) I would have a dinner as a cheat meal. I have been going to gym for almost 14 years. I never had issues before, but in January, after each cheat meal I had increased heart rate, night sweating and insomnia. It resolved always the next day and it went back to normal. In march, the same thing happened again, but this time the issues did not resolve and it has been like this for almost 2 months now:
- My resting heart rate rose from 60 to 75/80,
- I started losing muscle mass, although my weight stayed the same
- I had severe insomnia, which luckily resolved in about 3 weeks
- I experience anxiety
- I sweat more and I have some heat intolerance

During these 2 months I did countless examinations. Thyroid ultrasound was clear, antibodies not elevated, hormones and TSH withing range.
TSH: 1,56; fT4: 14,28; fT3: 4,52; anti Tg: 1,18; anti TPO: 0,39 (24. 10. 2024)
-----up to this point, I had no symptoms------
TSH: 0,804; fT4: 14,83; fT3: 3,75 (30. 3. 2026)
TSI: <0.1 (<0.5) (20.4.2026)
TSH: 1,3; fT4: 14.27, fT3: 4.87   (20.4. 2026)...TSh actually started going up
----I plan to do another thyroid panel soon----

So after two months, my symptoms are:
- gradual muscle loss, even though my weight is staying the same, but I see that muscles are slowly fading. I also notice regeneration after workouts is not good. I have some DOMS almost after each workout. My strenght also dropped a bit.
- still increased resting HR (around 75-80)
- anxiety
- occasioanl fatigue and tiredness
- wierd metabolism
- last few days also frequent need to urinate

All the doctors I have been to say this is all probably just stress, but I am not really convinced. So I have no medicine or support, basically nothing to help myself and no guidelines.

Any advice would be appreciated

Seeing so many people here just as lost as I am is a weird feeling. I don’t know whether to be relieved that I'm not alone in this, or completely crushed thinking that maybe there is no way out

Just had a phone call off GP these are the blood results:
T4: 31pmol
T3: 15pmol
TSH: <0.01 mU/L

Is this bad?
Symptoms are tired, weight loss, palpitations, moody hair loss.

I just don’t know what happens now. I’m been referred to an endocrinologist but the nhs wait is 34 weeks for first consult.

Any advice hints tips would be greatly appreciated

How does it make you feel?

I have been hyper a number of times on/off for the last 10 years.

I was put on carbimazole 30mg for nearly a year with no hospital follow-up. Eventually I complained to PALS and was seen at the beginning of March.

My blood results from back then came back as showing underactive and my medication was reduced to 15mg. I had a retest a few weeks ago as advised by the consultant.

I’m sure that I am still showing signs of underactive thyroid. Some things are better but some still seem to be lingering.

Has this happened to anyone else and how long till you felt better? Did your GP/consultant put you on different amounts of carbimazole? I feel my consultant was being safe incase I went hyper again.

I really hate this feeling, I think I feel worse than I ever did being overactive. I genuinely can’t envision myself having RAI and being underactive.

I am also waiting for results to test if I have graves as this has actually never been done either!

I recently had my thyroid panel done, and got prescribed for methimazole. I'm not having any bad (per se) side effects yet other than weight gain. Although, it's probably too early to tell. I've been on 10 mg for about a week now, and I'm already up 10lbs. I'm alright with the weight, I was skinny before and still am because of my height, but it's happening very quick with no change in diet. I worry that I'll balloon from this medication.

Has anyone else had this happen?

I have been unwell for almost 2 months now.

My endocrinologist has diagnosed me with subacute thyroiditis and told me it would be about 8 months to recover. Im in the hyperthyroidism phase right now.

I have noticed that I cannot focus on things up close. Everything at 20cm/8 inches or closer becomes blurry.

The last week, I noticed I've had issues reading small print. I've never had these issues before.

I couldn't read the back of a varnish tin. If I hold it out, its clear but the print is to small to read. I bring it closer and everything is blurry and so i still cant read it.

Is this related to hyperthyroidism?

The forms say I need to stop on Monday but everything I’ve read online say it’s not safe to just stop methimazole for an entire week. I am a teacher and cannot afford to miss more than the two days I scheduled off for the uptake. I don’t even want the uptake but they keep telling me I have to get it. Please help.

I lost weight with an already suppressed TSH. The medication became more saturated, causing me to go hyperthyroid.

We’ve been reducing my medication for over two months now with four medication changes total in this time, including stopping liothyronine totally.

The first few medication changes caused symptoms to oddly worsen. Now I’m on day 11 of my most recent drop, which I’m hoping will be a better fit and stop the over medicated effects.

Thing is, I’m a little concerned about the recovery timeline here. The endo my doctor consulted with said that with how long my TSH has been suppressed, it can take 4-6 months for it to return, and I’m concerned it might take that long for symptoms to subside. So when are symptoms supposed to improve then? Anyone else been in this boat before?

I’ve recently had some blood tests come back with very low TSH (I’ve posted numbers below) My GP said to wait 8 weeks then repeat blood tests but she suspected I’m in the early stages of hyperthyroidism.

Is there anything I can do in the meantime to bring my TSH level up through natural methods - diet, supplements, fasting etc? Also is it ok to do cardio? My heart rate does feel faster than normal…

I’m desperate to avoid meds mostly because I am terrified of putting on weight. Any advice gratefully received!

TSH < 0.01 mIU/L
The reference range is between 0.35 and 4.94

Free T4 15.0 pmol/L
The reference range is between 9.0 and 19.0

Free T3 4.90 pmol/L
The reference range is between 3.0 and 5.4 pmol/L.

Hey everyone, I'm currently waiting my hospital referral and I'm super glad I'm finally getting somewhere lol

Although for the last four weeks my gums have rly sore when brushing like to the point I can barely run my toothbrush over one part of my gums, and they've been bleeding.

Has this happened with anyone else? I've got a dentist appointment soon so I'll get some help then hut in the meantime I'm just wondering if anyone else has been going through this!

Thank you all <3

(F21) I have gone from hypo to hyper a few times, mostly hypo (ive been diagnosed since 6 years old), but ive always been super skinny due to my natural metabolism. It began slowing down some at age 17-19, then I started having issues keeping weight on once again. Now I am struggling to gain weight and not lose it. The heaviest ive gotten was 117, I am about 105 as of right now. I feel like shit, I feel underweight/ look underweight, i need some real advice because eating x amount of calories a day doesnt work for me. I am not a very physically active person.

Dude I went to the Dr for my issues lately which seems endless. All of the sudden I get this message in red on Mychart “TSH… ABNORMAL” and I click on this and read “Thyroid stimulating hormone - 0.008”

Tf? My dr called me and immediately referred me to an endocrinologist because “it’s the lowest I’ve ever seen”

I am waiting to see an endo but my doctor told me I have Graves’ disease. Strangely, my blood test showed no antibodies which is maybe surprising for an autoimmune disease?

My tsh is 0.02, my T3 is normal, my T4 is 24,5 but still, no trace of antibodies.

I am wondering if anyone else had that result too? This is so stressful.

Who else has fought not taking meds, or not had surgery? What was your outcome?
My Timeline:
2009 diagnosed with nodules with biopsies done and ok. Normal labs. No autoimmune.
2019- TSH tanked with subclinical symptoms
(Note: my father had just died and so under stress)
Dr put me on methimazole - it didn’t agree with me, bloated, moody, over all worse.
2021- RFA on hot nodules. Ended up with partial vocal cord paralysis due to procedure. One nodule had shrank. tSH slowly increased to subclinical.
Each year I have ultrasounds.
2026: Current: one nodule increased by 54 percent so at biopsy percentage. So will have that done. Not sure if I would do surgery at this point and risk my other vocal cord.
But Dr wants me on twice a week meds again, to prevent afib. I have no signs of any afib currently. Heart rate is great (Apple Watch monitored) No hyperthyroid symptoms.
Any thoughts?

I'm trying to get abs now for the past 6 months I'm 34 and had hyperthyroidism since 10 years has anyone done it. Is it possible 😄

I know most with hyperthyroidism deal with weight loss, but I'm dealing with gaining.

I was diagnosed 2.5 years ago, and my weight was 170. Prior to that, I was 135... I gained 35lbs in 6 months. After being diagnosed, I was put on methimazole, I'm currently 215 and still gaining. My hunger is constant, but my levels are steady.

How do combat the constant hunger? I've tried high fiber foods, more veggies, and fruits. Nothing is working. I'm worried about my heart and becoming diabetic.

25M, recently found out my TSH is 7.8 along with very low Vitamin D (4 ng/mL) and low B12 (190) and ferritin 76. Over the Past two years I’ve been dealing with severe diffuse hair shedding, fatigue, low energy, poor sleep, and a lot of stress/anxiety because of it.

The hair fall became so mentally exhausting that I eventually shaved my head because I couldn’t handle constantly seeing hair everywhere anymore.

Not asking for diagnosis or treatment advice I’m already planning to see an endocrinologist. I just wanted to hear experiences from others who had thyroid-related symptoms.

For people with thyroid issues:
Did you experience heavy hair shedding?
Did thyroid problems affect your sleep/anxiety levels too?
How long did it take to notice improvement after your thyroid levels became stable?

Just trying to understand whether others went through something similar.

Hi everyone,
I'm a 32-year-old male with hypothyroidism (diagnosed about 6 years ago), and I've been trying to stabilize my thyroid medication. I wanted to see if anyone has had a similar experience.
Recently I added T3 because I still wasn't feeling great on T4 alone.
First blood test - 27 Feb 2026
At the time I was taking:

• 100 mcg T4 daily

• 10 mcg T3 daily

Results:

• TSH: 2.818
• Free T4: 0.78 (low)
• Free T3: 2.74
Second blood test - 11 Apr 2026
Then I changed my dose to:

• 100 mcg T4 daily
• 10 mcg T3, but skipping one day regularly

Results:

• TSH: 3.571
• Free T4: 0.88 (still low)
• Free T3: 2.23

Even though Free T4 improved slightly, it's still below range and my TSH actually went higher.
Now l've changed again to:
• 125 mcg T4
• 10 mcg T3, still skipping one day
I'm currently about 12 days into this new dose.
Symptoms I've been dealing with are mostly digestive issues/constipation, fatigue, and just not feeling properly optimized overall.
I know 12 days is probably too early for full stabilization, but based on these labs, does increasing the T4 seem like the right direction? Has anyone else had low Free T4 even while taking T3?
Would appreciate any experiences or thoughts.