Itchy all over, Health anxiety symptom or something sinister going on? PLEASE HELP, DESPERATE.

Over the last 2 days I get a strange itch that can generally be anywhere on my body. Whenever this occurs all it does is make me freak out thinking something awful is happening to my body like HIV conversion sickness or something else, I recieved unprotected felatio one week ago from a woman of unknown status and although that is supposed to be a risk in theory I've read several places that that is in fact a very very low risk activity and that I have a higher chance of catching other STD's from this. I took an a home oral swab test that also came out negative but that only calmed my fears for a few days because then I was not feeling the itching. 

Whenever I go to work and have to start being active I start feeling a little ill, I have some kind of stomach bug that's been around since the night after I recieved the unprotected felatio. I'm worried out of my mind once again thinking I could of contracted something awful I don't think I could take something like an HIV diagnosis I would just end my life (No offense to anyone out there battling HIV, this is just me). I asked the girl of unkown status when she was last tested and never got a defninte answer, all she said was she was clean. Do I trust her? 

Does being anxious make anyone else feel a generalized itch? My mom is tired of my constant anxious episodes and won't talk to me about it, if I tell her any kind of issue she shrugs it off as something small and benign. Am I just losing my mind? Please help. 

I forgot to mention I revently also quit smoking Marijuana, I was a very heavy toker for a few months I would constantly be smoking whenever I could, could I be experiencing an extreme withdrawl symptom? I'm extrememly worried for myself and would just like to be able to clam down. I'm seeing a therapist soon maybe she will help me feel better about this whole thing. My mom finds it ridicilous for me to even consider that I could of contracted HIV from this girl and all talking to her has done is add to my mental unwellness by disregarding everything I bring up to her.  I"m worried sick. Please any isnight to my current situation would really help. 

I don't think you're crazy at all. I completely get why you would kill yourself. I also feel like if my blood test says I have cancer I will do the same. There are people who are living with cancer as well as aids but us not wanting to live with them has nothing to do with offending them.

I have high anxiety as well as health anxiety and clinical depression.

I've had a well over a dozen symtoms one of which is itching. It happened out of nowhere but usually goes away on its own. I hear anxiety can cause itches, even rashes. I'm gonna get a checkup just to know for sure what's making me itch. You should do the same.

you have probably got  an  std or crabs which make you itch. So don't worry about HIV that is unlikely because you are overanxious and your partner gave you an honest answer.