It's a frightening sensation to feel your chest tightening during exercise. You might feel as if you can't breathe properly, or you might feel pain in your windpipe or throat. Exercise-induced asthma could be causing your symptoms, and you can treat it easily through medication or self-help measures. But since other conditions can mimic exercise-induced asthma and cause chest tightness, you should see your doctor immediately to rule out other potential causes.