I was with this dude and we were rubbing genitals together but never had sex. I already have an low immune system and I can get sick easily. I dont have no symptoms and I havent seen him since june. I do know after doing that I felt nausea but never threw up. I know that HIV is a blood thing, and he never ejaculate anything, he rubbed mostly at the top not bottom. Do I, dont I...is it in my head