Recent content by testaccount

I am 13 years old, 5"6/5"7 ft.,125-135 pounds (im not sure) and i haven't exercised in a long time. Like 2-3 months. I was just using the bike and doing some jumping jacks, a little cardio for 30 mins. then i started to feel weak, like i couldnt breath. I lied down for a while then it went away...