GI issues, extreme drug/supplement sensitivities, and autonomic reactivity – looking for shared experiences while in diagnostic workup
Hi everyone,
I’m currently in the middle of a diagnostic workup with my specialists (gastroenterologist, allergist/immunologist, and psychiatrist) to figure out what’s going on with my body. I wanted to reach out to hear about your personal journeys if you’ve experienced a similar overlap.
Here is a summary of what I’m dealing with:
Extreme Neuro, Supplement & Medication Sensitivity:
I’ve been prescribed over 6 different psychiatric medications for F-diagnoses (mood/anxiety/functional issues), and I suffered extreme adverse reactions to every single one without any positive effect. My psychiatrist has now stopped all psychiatric meds, concluding that my nervous system is hyper-reactive and that I likely have an underlying genetic polymorphism affecting drug metabolism. We are now exploring alternative support (psychobiotics, methylene blue, etc.).
Even simple supplements trigger severe reactions—for example, taking magnesium bisglycinate caused extreme, painful calf cramps and intense muscle/eyelid twitching.
Interestingly, the only medications I tolerate well are GABA-agonists (like alprazolam and clonazepam) and Ketoprofen (NSAID).
GI & Allergic/Histamine Picture: Severe gut hypersensitivity, sudden reactions to foods and drinks (flushing, bowel urgency, severe spasms), and confirmed IgE sensitivities to specific food proteins (milk protein, wheat, legumes).
Skin/Systemic Symptoms: Unexplained itching around joints and eyes without a visible rash, and a past acute reaction (hives) to an energy drink.
My medical team is looking into the connection between gut lining inflammation, mast cell activation/histamine issues, genetic drug metabolism, and autonomic nervous system dysregulation.
For those of you who have a diagnosed overlap between dysautonomia/POTS, Mast Cell Activation (MCAS), or severe medication/supplement sensitivity:
Has anyone else experienced extreme paradoxical reactions to basic supplements (like magnesium) or psychiatric medications due to nervous system or mast cell reactivity?
Did genetic testing (like pharmacogenomics, MTHFR, or methylation panels) or exploring alternative gut-brain therapies help guide your treatment?
What specific questions or tests were most helpful to discuss with your autonomic or allergy specialists during your initial visits?
Note: I am NOT asking for a diagnosis, medical advice, or interpretation of results. I am working closely with my doctors and preparing for upcoming specialist visits. I’d just love to hear your personal experiences and what helped you navigate a hyper-sensitive system!