burning tingling in penis head and on the rim of my lips

[man345]

I assume I have never had an std before, and I'm in a monogamus relationship with my girlfriend of one year. 5 days ago I started to feel slight burning and tingling in the head of my penis and slight redness around the rim of the head. I haven't had in lensions, bumps, or discharge. I never have been tested for any std despite multiple unprotected sexual partners in the last 2 years and my girlfriend hasn't been tested for stds since her last boyfriend . We have unprotected sex but none since this started happening. Last Saturday I got drunk at a party and I kissed a girl at a party in the batheroom anyway a gay guy came in and tried to watch. Me and the girl wasn't down with it so she left. He tried to convince me in my drunken state he wasn't gay and that he wanted to get in on the action. Then for some weird reason he started talking about my pants being unbuckled and I was showing and he grabbed me and tried giving me oral sex. I wasn't having it so I stopped him and left the room. Since then I have been having this feeling in my penis as I stated earlier and it's accompanied by frequent urination. I just want to know could this possibly be herpes? Can I have an STD or NGU or a UTI I have read a million things trying to figure out what the hell this could be I going to get tested Monday for STD's and HSV-1 and HSV-2... As you can Imagine I'm freaking out to add the same day I had unprotected sex with my girlfriend but she is fine. I need help!!!!