Hello,
Thank you for your query at DoctorSpring.com
Heart pounding on exercise is abnormal. I would recommend you to get a 2D echo examinto rule out any structural heart disease. Also I would recommend you to get a 24 hour holter examination done. This will record any arrhythmia which may be causing these heart pounding sensations during football games.
Once you get it done, let me know.
I will assist you further,
Regards
Dr Vivek Mahajan
DM Cardiology