What Causes Itchiness In The Penis After Unprotected Intercourse?

Hello doctor, I had put on two condoms and had intercourse with a prostitute, but then both condoms tore, and I pulled out and stopped immediately, after a week, I started feeling all depressed and my penis started to itch and the head was its normal size but the rest of the penis shrunk, got worried, that it could perhaps be hiv, I didn t experience any flu symptoms but I started having a dry throat, and my body just feels uneasy and I feel weak at times and I get headaches minor sometimes..how likely are the chances of me receiving the virus