21, female, normal weight, previous light smoker. My whole life I've gotten pains in my lower teeth/gums/chin, chest and sometimes neck when I run for a while and twinges during other intense activities. Got the very occasional ectopic as a kid, suffered from heartburn and was puffed out easily. Went to cardiologists at 11 and 15 and had echos and stress ekgs, which were normal but failed to really reproduce pain.
Then five months ago, I started getting racing heart, dizziness and exercise intolerance that got more extreme as I came down with a flu. During the flu, my heart raced every time I moved. Had echo, ekgs, holter that were normal and cardiologist said it would go away after flu. Since then I've had tachycardia every time i stand or walk, faintness, collapse, chest pains/discomfort, aching left arm, aching lower face, ectopics, vomiting, chronic heartburn, sweating, shortness of breath and many scary episodes. Completely housebound. Had chest ct, bloods many times (raised pancreas and liver enzymes), more ekgs, event monitor, cardiac ct perfusion scan. No stress test. Goitre but normal TSH.
Cardiologist suspects POTS and discharged me months ago, but my older symptoms make me worry that this might be a worsening of some underlying condition like endothelial or microvascular dysfunction. Never discussed these with cardiologist. Possible, or might my symptoms really be benign? As I type this, my left arm and shoulder are aching and I feel hot and nauseous.