Hello everyone, I'm new and would love some advice. I'll try to keep this short.
When I was a teenager I started having episodes of blacking out. I would feel dizzy, I'd get tunnel vision, my vision would then turn completely black, I'd lose my hearing, and I'd fall out. I hesitate to say fainting only because I never lost the ability to think while this was happening. This most often happened if I stood still for too long. (But also when I first stood up or when I bent down to get something and stood back up)
The doctors never figured out what caused it, told me I had an irregular heartbeat and that probably had something to do with it and left it at that. A friend in the military told me I was probably locking my knees when I stood still, and that's the closest I got to any sort of answer.
I went a few years without any overly serious episodes and basically just accepted that I shouldn't stand still too long, but a recent stay in the hospital after three episodes in one day, where I still couldn't get any answers or even a hypothesis, had me deciding to look into it myself.
I found POTS. Symptoms that resonate most with me are low blood pressure (resting is about 90/45) fatigue, frequent nausea, forgetfulness and trouble focusing, insomnia and frequent awakening, shakiness/tremors (especially after adrenaline surge) excercise intolerance, constipation, and cold extremities (my friends used to call me Elsa because my hands are always freezing) and, of course, blacking out when standing up/standing still.
While I know these can all be symptoms of other illnesses and there's no guarantee it is POTS, I feel it's something I should definitely look into. However I also read that it's hard to diagnose and/or frequently misdiagnosed, and I'm worried if I try to bring it up, I'll be dismissed without the dr really looking into it.
Tldr: I want to look into the possibility I have POTS, and I would love any advice on how to bring it up to my doctor, and any evidence or research or anything I might should bring to get him to take it seriously.
Any and all advice is appreciated.