My boyfriend and I were having anal sex for the first time today. I have a really tight hole, and he was able to go in a little in some positions, but when I laid on my stomach he got in but after just a short time he hit the side and it hurt. I said "I feel like I'm bleeding" and ran to the bathroom, and passed out for a quick minute(s). Before/afterwards, my head as really dizzy, I couldn't see much, and I heard ringing in my ears for a few.
There was no blood or anything, it just hurt and I got weird. I looked this up and I wonder if it's because I didn't eat anything at all today, I didn't drink really any water today, and I am a worry wart and was really stressed about it inside. Also could be cause on top of that the blood all circulated to the front of my head - so when I got up it made me pass out?
Note: I was not drunk or high (I don't drink or smoke) and we had a condom and ky jelly.