Pain in groin and genital area

Hi, I was possibly exposed to HIV on January 27, 2009. I was with the Sex Worker and she gave me the blow job. I was wearing the condom which was provided by her. When she was putting the condom on my penis was not hard enough. Long story short after I ejaculate, I found white stuff on groin area which probably mine came out of condom or her saliva. I cleaned the stuff with tissue paper and then I took off the condom with different tissue paper. After that I cleaned my penis and groin area with couple of new tissue papers. This was the whole situation. I dropped her off, came home wash myself and went to bed. After that on Feb. 1, 2009 I had sex with my GF (She is cleaned and never had sex with someone else) and we used condom. That day we tried new position. Well on Feb. 02, 2009 I start feeling pain in my groin area and genital (Penis) and my public area was so itchy. Also I start having burning, pinching and slight pain when I was urinating. I used to had urination problem before bu