HELP I think i broke it...

[Diabeetus1]

I am 19 years old and just lost my virginity over the past weekend. We had sex 3 times in two days. During the last session, I lost my erection for the first time (I'm hoping it had something to do with the fact that I had to *** very badly). I did manage to get it back and finish up, eventually, but ever since this weekend, I have been unable to get an erection. I don't think I even got one when I was ******. In fact, right now I don't even find the concept of sex all that appealing. Is it normal for a 19 year old to lose his sex drive from that much activity? It's also scary because before we had sex I would get an erection just from thinking about my girlfriend. Now, I can have her naked and on top of me, and I couldnt keep it up. Is it possible that I have become that desensitized to sex in such a short time? Is this a mental problem? I'm starting to get worried that something might be wrong. It is only the second day after the sex, though. I just expected to be able to recover faster than this, I used to masturbate very often and was a typical horny 19 year old who would get hard just holding my girlfriend's hand. I find it hard to believe I've gone from that to porn star/80 year old man in 3 days. How long should I wait before seeing a doctor? I'm starting to get really concerned. Has this happened to anyone else at this age, or does anyone have any advice? Thanks so much.