A little over one year ago I received unprotected oral sex from a street walker, from then to now I have tested negative for hiv hep b hep c herpes 2 syphilis gonheriea claymidia. Now on to the symptoms, three months after the encounter till now I have been experiencing chronic post nasal drip and excessive nasal mucus, and I also sometimes get strange “rashes” every couple of days or so I’ll get itchy bumps that pop up on my arm or my shins or calf’s or my thighs. With all of my tests negative I am just at a loss to what could cause these symptoms. In summary potential exposure a little over a year ago, post nasal drip since April last year, and occasional rashes that are itchy and randomly placed on my body, all of my negative results. Is there any chance this is any std at all??? PLEASE help me I’ve been racking my brain for a year and I can’t deal with this any more. Thank you for ALL of you efforts!