im 18 years old, around 5,6 and i weight around 140punds (im not sure about this maybe i weight a little more) my doctor told me a few years ago that i had to exercise regularly because my cholesterol levels went up too quickly and it could lead to heart problems (very unlikely but it s possible). i used to exercise every day before i stopped and after this i ve been worried about my health. i stopped exercising about a year ago and i ve been feeling a little weird lately. i get slight chest pains occasionally, it doest really hurt it s just a little uncomfortable. i ve been watching my blood pressure and heart rate these past few days and i dont think they re okay. my blood pressure is around 120-130 / 80-90, my rested heart rate is what worries me because it seems a little bit too fast (around 70+ bpm). last week i tried to start exercising again and my heart rate while running went up to around 185 i think. also today i was running up the stairs and a few seconds after i felt a very slight pain on the inner upper part of the arm. this happened to me twice today and im worried about this because i think this is what it feels like when you re about to have a heart attack .