Your symptoms are not due to HIV. People do not get HIV from giving or receiving oral sex. Your saliva has enzymes in it that break down virus and it also is inactivated by air. So, oral sex is not going to result in HIV. Yes, it is your anxiety playing a role here. Try to calm down--- this wasn't a risk. Adults get HIV from having unprotected vaginal or anal sex or sharing of IV drug needles and that's it. So, no risk