I work construction, yesterday after work I was driving my coworker home and he was in passenger seat he had a small cut on his hand he was waving his hands around fast to music and he flung blood drop to my mouth and I tasted it.  I had a bleeding blister in my mouth the day before which is still open and sore also have bleeding gums. I did not taste any blood until he was waving his hands around. I took a drink of pop a few seconds after I tasted it. Now I’m feeling depressed and worried that I may have gotten hiv and or hepatitis b/c from this.