I am having heart ectopics or pvcs when i take warm or hot showers, on recovery of strenuous exercise like push-ups, or when i have panic attacks. i usually dont get any while just doing daily activities but what could be causing this?

The fact that you know you're having PVCs tells me you've already had a study of your outpatient heart monitor findings& did not have high grade or worrisome ventricular irritability & I assume your resting EKG was normal. It's felt that PVCs developing after exercise is more worrisome than those during exercise. For best care & advice consult a cardiologist electrophysiologist for evaluation.