About two weeks ago i had oral sex withy a guy. Basically he rimmed me (I’m also a guy) and i didn’t like it so we stopped after two-four minutes. After that i felt discomfort on my ass, didn’t hurt too much but it felt like it was chafed. About three days ago it sort of moved up to my genital parts and it was red and it felt chafed as well. I was wondering if this could be herpes? I’ve been stressing about it for two weeks and I’m planning on visiting planned Parenthood just to be safe.