Allergic reaction, Anaphylactic shock.
Happened to me last night. Previously I would get welts at injection sites that felt kinda itchy and hard for a few days under the skin. This time it was different.
Took the same dose, felt like a bee sting getting warmer and warmer. Then I started getting itchy all over my body, like really really itchy, it kept getting worse. I figured, maybe small reaction or alergy, so I take 2 Benadryl. It kept getting worse. At this point I'm feeling really tingly. It was so bad I had to jump in the shower. I looked at myself in the mirror and my whole body was red and covered in hives like mosquito bites everywhere. Then my tongue started swelling, harder to breathe.. I realize what's happening. I'm going into Anaphylaxis shock.
I barely made it out of the shower, I'm now on the brink of blacking out. But I call 911 and lay down flat to prevent myself from fainting. The next 10 minutes were hell.
They arrive I still had hives, shakes, and lightheadedness. But I was starting to breathe better, I guess the Benadryl started working. They hung around for 10min to take my vitals and make sure my symptoms weren't worsening. I ended up declining to take an ambulance ride ($$$ fuck our healthcare system) because even with insurance it's ridiculously expensive and my condition was already improving. Ended up spending the night on the toilet with crazy digestive cramps and diarrhea.
If I was still feeling the way I did in the shower when the paramedics arrived, I would have 100% taken an EpiPen shot and a ride to the hospital. I was genuinely afraid for my life. Horrible experience. Will not take this peptide ever again.
TLDR: Anaphylaxis shock, almost had to go to ER. Keep strong antihistamines around if you're going to try something. Start with a tiny dose. If you get red welts or bumps that last a few days, never take it again.
Also fuck the American healthcare system, people shouldn't need to think about money when they need medical care.