I have a girlfriend, but I had a homosexual encounter a few days ago, where i gave oral sex/hand job with a condom. Within a couple of hours, i had a slight tingling/pain at head of my penis. that has continued now for a few days. don't really have much burning when i pee, no discharge at this point. (i had chlamydia in college, and remember the greenish/clear discharge and real burning upon urination).
Sometimes the symptoms go away for a while, other times they kind of hurt, discomfort at head of penis and at base of shaft.
So, is this possibly an STD, or is it true that guilt/anxiety can cause this? Symptoms within hours seems pretty unlikely from what I've read. I definitely feel bad about the encounter for several reasons. I also had a one-nighter with a girl a few years ago and seem to remember similar feelings, but I went ahead and saw a doc to get some anti-biotics.
If I do decide to go the doc route, how long should I wait or can I start taking antibiotics at any time?
Thanks