Hello, I am 23 years old and about 4 months ago i received oral sex from a woman who someone told me later to be a hooker. For the past few days I have had Diarrhea. I woke up with a skin rash on my forearm two days ago that lasted about fifteen minutes that kinda resembled Hives( reddish area, small white bumps). Might be from my sisters cat.. and for the past two days have had a semi sore throat and yesterday had awful muscle aches, shivers, and a mild fever up until i took medicine and it helped most of it yesterday. Today i woke up with minimal muscle ache, but have a sore throat and a minor cough. I know people say you dont get HIV from oral sex, but i dont know if there is a small risk involved and if anyone could help me out it would really be appreciated because im really freaking out about any little thing i think is different about me.