I was getting a back rub and a few minutes late these strange bumps started appearing on my back, they are not acne but kind of looked like it. They were tiny bumps with white headed pimple . What coud this be? I was exposed to someone who had HIV five months ago and thought maybe it is a stmptom from HIV, but I contine to test negative for HIV. But since the exposure to the HIV man I have been having all kinds of skin problems! Five months HIV negative so I don't know....what is this !?!? Please help thank you. strange pimple like white head bumps on back..for sure not pimples... what are they? THANK YOU