HIV Rash?

hi all, i had a possible exposure about 8 days ago (gave oral to a female) i havent been feeling great for the last week. No fever, but a very mild sore throat and a bit a nausia. today i noticed this on my back:

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some are moles but there is definitly a rash there. i can feel it, its a bit hot, not itchy but feels like it could be. im freaking out to be honest. going to the doctors next Wednesday to get a test. Does anyone know if this does look like a hiv rash ? Thanks Dan