Thirty years ago I suffered an anaphylactic shock. It was fairly mild as I didn't lose consciousness but I came close. I was rushed to the nearest hospital where a quick check found that my blood pressure was dangerously low. I was given cetirizine hydrochloride to combat the allergic reaction.
I don't know for certain what caused the sudden attack but I suspect that one of my work colleagues put something in my drink.
Anyway, I recovered within minutes but six months later all my hair follicles were dead. My hair was falling out in clumps. I lost every hair on my body and my fingernails were cracking. A consultant told me that I was lucky because an anaphylactic shock such as I'd experienced can cause the autoimmune system to attack anything or everything. For me, it chose the keratin-producing cells. But it could have attacked the pancreas (type 1 diabetes), the myelin sheath around nerves (multiple sclerosis), the heart valves or many other things.
So, a warning: having a "faint" after an injection might sound like nothing but it could be life-changing.
(Feel free to re-post this on social media.)
OP, there's a chance you might have idiopathic anaphylaxis. Soft shell crab gave me my first episode. I've had another and there was really nothing that should have brought it on. So, basically, at any time for any/no reason, I can have an episode.
Supposedly, after an attack, there are not lingering health effects. After reading your post, I know this is not true. My health has never recovered. My immune system has been in the trash since the anaphylaxis 6 years ago. Not sure if it was the attack or the drugs used to save me life.
The cytokine storm people have experienced after an injection is very similar to what we experienced.
It's a huge reason I would never consider the vaxx, not that I would have considered it anyway.