Hi! I have been having high heart rates for the last few years now and we don't know why. I've seen a cardiologist about it but we did tests and everything came out normal with that,the only thing it could be is because I've had asthma since I was 7 and I always used to take steroids for that for many years,I finally stopped taking them but the rate still tend to go high? is that something normal once you get older? is it some of the medications I'm taking? I currently take BP medicine and eczema medicine. Idk, it's a mystery.....