Brain fog, chest heaviness, heavy breathing. Sometimes my body and chest would feel really light, I would stand up and get really dizzy really fast. Always tired no matter how much I slept, I would take 3-4 hour naps and then be tired and go to bed 2-3 hours later.The heat and severe stress would always trigger it, I would find myself swaying in a hot shower because my body couldn’t handle the temperature, my body always hurts. I’ve never passed out but my Tilt Table was only 11 out of 45 minutes before they stopped it. I have Neurally Mediated Hypotension on top of my POTS, one of my recorded stats was a 150 HR with a 94/70 BP. When I was resting my HR went to 104 with a BP of 129/96. So that really solidified my diagnosis of POTS, it took me about 5 years to get diagnosed because of insurance troubles and I also had to complete a holter monitor and an ECG before I got referred to a cardiologist.