so I tried to have sex with my best friend and he was starting to get into it and go and I told him to stop and get off me and I was bleeding because he tore me. [this was my second time and the first guy was a lot smaller] but its been about 2 weeks and I haven't been turned on or horny at all. my sex drive has completely disappeared. should I be worried? I mean is this normal? and how do I fix it?