Awhile ago my girlfriend was going to give me a hand job for the first time. The first real sexual contact. My erection wouldn't stay up.. Although I was really tired and wasn't even in the mood. And recenltly ive been having trouble keeping my erection. But then it usually goes away after and I start to get noremal sexually active again. Can anyone help me with my problem? I'm thinking it will just go away within time and I will be fine.