This question is in the wrong forum. See the IMPORTANT notice above. Sorry, but we stick to that rule. This thread will be deleted after you have had a chance to see this brief reply.
Dr. Hook and I don't look at posted photos. But it doesn't matter. You don't have HIV, both because you had zero risk exposures and, from your description, HIV is not a plausible cause of a rash like you describe. And I have no patience with "I'd like to go to the doctor but I'm too terrified." Just do it, preferably a dermatologist. You can be sure it isn't HIV and almost certainly nothing serious.
Regards--- HHH, MD
Please accept my apologizes. Thank you for your reply despite my non-compliance.