Late last night I met a guy in a public bathroom. We started fooling around and it got hot and heavy. We made out really hard. I think some blood vessels popped in my mouth. I tasted blood. But in the heat of the moment I gave him head. He didn't ejaculate in my mouth. When he gave me head, he was really bad and used his teeth. There was some sore spots on my penis. He ejaculated. To the side. But then rubbed some semen on my penis after he came. I never ejaculated. We finished and left. I got home and one side of my penis swelled. I rubbed hydrogen peroxide on it and took a shower. I also used mouthwash in my mouth. I didn't notice any open cuts on my penis. But it was sensitive. I also noticed broken blood vessels in my mouth, on the spot between my upper teeth and top of my lip. Realistically, how worried should I be about contracting HIV?