Hello, sexplanations. Um, so, I just found out I have a UTI? I've never had one before, and I'm pretty bummed/upset about it, but I'm going to be going to the doctor soon and all of that. My issue/question, though, is: I'm 99 sure it developed last week when I sort-of hooked up with a friend-is this something I should tell him? As in, is this something that he could also have likely developed from our messing around? THANK YOU FOR YOUR ADVICE.