I had unprotected oral sex and protected vaginal sex with a sex worker last month. I was drunk, what made me a little scared is that when I fingered her and I used the same hand to masturbate myself, because Im having troubble with my erection. so far, the symptoms that I had appeared few days ago (sore feeling inside of the hed of the penis, but no disccharge). I was given 1 week medication 4 days after the incident, I also took a urinalysis and culture test of the urine, the doctor said it was normal. I also asked if sex worker had regular tests and check ups , and she said yes. now im waiting for the result of my chlamida test requested by my doctor. Pls tell me wat are the odds that i have contracted hiv or any other std, im really scared right now... do i have to get tested for hiv??