I have a 2-3 nodule like swelling just above the buttock, its not painful, no bleeding. but i have itching. later i got a typical lesion on my penis, with mild pain and itching. i dont know how did it happen. i had unprotected sex with a unknown partner 1 month ago. i searched some pics in net, they say its as warts, wats i can do, is it realated to HIV ?