You can only get HIV sexually from unprotected vagainal or anal sex. Not from oral sex or from masterbating someone.
12 Weeks is conclsuive. You are negative.
It is not STD related. See a Dr.
Doubt that this is STD related. Maybe try posting in the dermotology communtiy.
We did read this, see a Dr this is not STD related. Nothing else we can say or do to help you at this point.
No those symptoms have no relation to a STD. Test for gonorrhea and chlymida now, syphilis at 6 weeks, HIV at 3 months and herpes at 4 months.