JK, Sounds like (i`m not a doctor) u have either physical or psychological issue. Don`t be afraid off by the shrink thing-millions go. I would see a cardiologist first to rule out a heart condition. You "could" have A-fib & it`s nothing to take lightly. It could lead to a heart attack or stroke. Have you had your blood sugar levels? Google A-fib & a chart of how much you should weight as a ratio to your height. This "could" be a health problem that`s putting out the fire in the bedroom. But, you have no problem masterbating. That`s yet another issue you have to work thru. It`s not fair for you to be satisfying yourself & then disappointing your wife & probably have her feeling it`s her fault in bed. If your watching the type of porn your wife would never consent to, the shrink becomes even more important. You may`ve been able to pull this off (no pun intended) when you were u were younger & weighed a lot less. If u still sincerely love your wife & want to keep her with you, you`ve got some work in front of you. Right in front of you.