This is a problem I've had since childhood. Now, I'm 20 years old, 5"1, about 125 lbs.
I usually work out 6 days a week, either lifting, walking on the treadmill, or riding a stationary bike. I walk on the treadmill because if I jog or run for more than a minute or two, I'll feel like I won't be able to breathe anymore. My chest gets really tight and my heart thuds like crazy, even when I'm NOT tired. But this only happens during certain exercises: jogging, jump roping, basically anything where my feet come off the ground. I'm fine with biking, rollerblading, swimming, etc. I can do these activities for hours, sweating like a horse, and be fine. But why can't I run? I don't think it's psychological, because everytime I try, I don't really expect it to happen. Another thing which might be unrelated is that I can't exercise or walk quickly without getting cramps if I don't wait at least 4 hours after eating a small-medium sized meal. Some people have told me this is odd, but I dunno. So, do I just need to try running more often, breathe differently, what? Please help me.
