Hey guys. I have a real problem here, it's a bit personal but I really need help, so I hope someone's here for this kind of thing. I had a heart attack two years back, and I'm healthy now but still on medication daily. I am not sure if that has anything to do with my problem, but I thought it could be relevant. My wife and I had a great sex life before, and we still are quite active in the bedroom (and outside of it!) now, but I tend to lose my erection just before penetration, which is not only a mood killer but it has stopped us from having proper intercourse for quite a while! If you have any tips, please tell me!