So this is a really advanced topic but, lets say someone was to do any sort of physical exertion such as masturbate, with in about 4-10 hours later ill start to receive really bad heart ache and the shortness of breath too, what could this be?

Strongly urge a visit to your doctor and possibly a treadmill test. You could be suffering angina pectoris, with a risk of a "heart attack". Alternative causes can be considered once cardiovascular issues have been excluded. Get proactive NOW!

If you experience any sudden episode of shortness of breath associated with chest pain or “heart ache” with or without physical exertion, I will recommend you contact your PCP or an emergency room if the symptoms continue or become more severe. Good luck!