When having sexual relations with a woman, I get erect but it comes and goes, During Intercourse I ejaculate very quickly, about a minute or less, I feel like a virgin. This has been always I had intercourse the first time at 25. I i try to hold but it gets soft so I can't stay inside her.
When I masturbate (Once a day or more) I am able to stay erect for a long time, I'm even able to control ejaculation (edge). Im a few pounds over, but other wise healthy, don't drink and don't smoke, perfect blood pressure.