Hello, I'm really concerned about wether or not I have HIV. About 8 weeks ago, I had unprotected contact (partner inserted the head of his penis,anally.) he did not cum in me, but I'm unsure if precum had gotten in. around 4 weeks after I noticed I had developed thrush. I waited two weeks, and tested at 6 weeks. Which came back negative, on the 4th gen duo test, and I felt very happy. Until I developed a rash about a week ago, 7 weeks, how ever it doesn't look like other HIV rashes I've seen. Also it just itches then goes away, leaving barley noticeable bumps . Not very many but still concerning. I also have small patches of skin that are pinkish red several places on my legs that itch they're tiny and wouldn't consider it a rash. another thing, the rash that appeared behind my knee, also was on the other leg, but a day later. So I'm very concerned, is it HIV? Should I be worried? Do HIV rashes come and go or are they persistent?