Had a protected sex with my partner during her cycle but 3 days after got a rash inside my mouth and penis so I went to the emergency room and they did a STD test which was syphilis,gonorhea,herpes,chlamydia and everything came back negative.Wasnt still sure I went to see a dermatologist who did a biopsy of the rash on the penis ,and said it was rash but the result was saying I should see a generalist to look carefully if it is not a condylomata, after that I went to see another ENT specialist for the rash inside the mouth and we did a biopsy which said it is mycoses and he told me it gonna go away but two months later they are still there.I lost a lot of pound I guess like 10 and I have 4 black sign on my right arm. My body is itching.What do you think it can be? Why they didn't test hiv during the std test?