Hi, I'm a 20 year old male and about 3 weeks ago I gave an older guy oral sex. We'd chatted on the internet a bit and he said that he didn't have any diseases (and was tested about 2 months ago), and was enthusiastic about meet long term (not just a one time thing). I know he's had sexual partners in the past, but he said that he hasn't had one for a while. We decided to meet once and I gave him oral sex for about 30 seconds total. He didn't *** in my mouth and I don't think there was any precum. My mouth and throat were also very healthy, and I didn't brush my teeth or anything beforehands. I've talked to him a couple of times since, but when I tried calling him recently a message said that he disconnected phone service. I know there's a physical chance that I have something, but that it's generally pretty low and frankly my anxiety over the whole thing is killing me. Can someone tell me anything? Thank you