I'm a male in mid 20s. I had my first intercourse with a lady I know who had multiple partners in the past. The very next day I felt a stinging pain at the tip of my penis and in my urethra. The pain progressively got worse 4 days later and it burns to pee. During the 5 days of penis pain, I had drank cranberry pills and lots of water, and by day 5 the pain went away. On the 5th day however, I began feeling very lethargic. I felt body aches, slight headaches, nausea, the need to vomit, overall tiredness. I was freaking out, I figured I was a goner for sure. On the 4th day I took a UTI and STD test, and everything returned negative. It is now 2 weeks post exposure, I'm still feeling slight headaches and body aches, but I don't see any lesions or weird things happening to my penis. The doctor told me that the pain I experienced was from friction for the first time, and the body aches/headaches is caused from stress and paranoia. I'm not convinced though, I'm sure I contracted something from this lady. She asked me first if I was clean, I said yes; and she reassured me that she was clean as well. Of course, she could've lied...now I have to wait till April to do another test. Any ideas as to what is causing my issue here?