Actually, I know EXACTLY what hairy man is talking about, I am dealing with the same thing, but in a different way. I just got married 4 weeks this Saturday. The first time me and my wife had sex, it was great!! The next night, the same thing happened!! Well, ever since the first 2 days, we have been going at it pretty much everyday and I only came only like every other session. We really start getting hot and hevy in our love making and I've been SUPER turned on but it just won't happen! While we are doing it, I can feel it build up, and I am sure it's gonna happen, then the feeling goes away! This will happen more often than not. She keeps feeling like it's her fault, or she's doing something wrong and I can honetly say that it's NOT her!! I am on a couple different pain medications, an anti-depressant. I also have severe siatica and a bad disk Im not ruling them out but I still would like other input so I can get other ideas. Thanks everyone!!