Not sure how to pose this question, but last night, I got knee'd in the face and got a pretty bad bloody lip. My partner and I continued to roll, but after I was bleeding profusely, we stopped to check on my lip. After I went to the bathroom to wash up, I started feeling light headed and felt like I could pass out if I didn't lay down. This happened to me once before years ago when I dropped a dumbell on my finger. I'm not weirded out by shots or needles or blood. I have tattoos and have donated blood on numerous occasions, so I'm curious as to what this could be. Any of you guys have an idea?