Okay so I am a 20 year old male I am 5'10 and 140 lbs. About three years ago I was VERY active but surprisingly overweight I was about 215 pounds. My resting heart rate was about 55 to 60 and with intense exercise I would hit around 100 120. Over the past say two months my heart has a total mind of its own... There will be times where I'll be standing there and start having palpitations to where my resting heart rate is around 130. Now my resting can be anywhere between 80 to 110 on a good day. I have noticed if I walk up just 10 steps at an INCREDIBLY slow pace literally 1 step every 3 to 4 seconds my heart rate will shoot to about 190. I ran up a flight of steps ( kind of my own mock stress test I suppose) I hit 230 my face hurt I couldn't breathe it felt like every part of my body was pulsating. Up until these problems started I was still pretty active. My pressure is great never higher than 110/70s I haven't taken it yet when these problems start typically I'm focusing on keeping my cool and calming down. Does ANYONE know what is going on. My family does have a horrible heart history but I am too young for this.