Y my chest feel heavy when i don't exercise? slightly harder 2 breath. usually run 3-4 times a week but recently skip some weeks. better when i've ran

Only medical eval: Will tell for sure. However, do you have any anxiety issues? Chest heaviness/tightness ; breathing issues can sometimes be related to panic/ anxiety. Many people use exercise to control anxiety symptoms. You have caffeine listed under medications. Caffeine or other stimulating substances could worsen symptoms. Consider getting checked out. Take care.