Hi there,sorry for my bad English,I have a 2012 March with a unprotected sex, then I found out I have ulcer in my penis because I have hurt that time,so I very scared ,I go for HIV and herpes test , first test all negative then after second test show up I have herpes but I still have to reconfirm so that I go for other 2 lab check , all come out negative.but is recover few month for this ulcer until now never show up.but in my mind ,I still scared for HIV ,so I continous every month go for a test ,already test upto 12 time until now.all negative.but recently I catch that I have hairy tongue,I go for biopsy,it show up hairy leukopikia ,I very scared .is that I infection?i ask many many doc ,but they say not,and I also have go for infection department but they say I am not positive ,this is not their job,.but my mind still cannot let go.please help me~~~~