About 8 weeks ago I had unprotected oral sex and I showed no symptoms besides the occasional itch up until this past week. I had extreme itching, some warts that that I noticed although they might have already been there before and some pain in my penis opening. I got scared and went and got tested for herpes and both types came back negative. Should I go get tested for other STIs or am I just being paranoid and this is just a fungal infection or UTI? I also have never had sex before only the oral sex that was performed on me 8 weeks ago.