urethritis for 3 months

I had unprotected oral sex over 3 months ago.  A week later I had clear discharge, urgency and urethral pain.  was treated for gonorrhea and chlamydia (tests were negative.  Discharge went away but urethral pain has still been here, for 3 months!  The pain intensifies with erection, but no change with ejaculation.  Anyone have an idea what I have.  The doctor's don't know, 1 said it was viral and will work its way out.

[Vance2335]

My quick guess would be NGU, but no reason to have pain without discharge. And never heard of anything that gives more pain with an erection.
Not really sure what this could be, maybe try a uriologist.

[chrisgoring]

The urologist thinks its viral, but geez, 3 months!  I'm at a loss. going to see my GP again and see what he thinks, any commmets are appreciated.

[aquama617]

I have NSU now and I had a very similar problem the other day -- very strong pain in urethra when I got an erection.  I, too, have been working with my doctor for 2 months to get rid of whatever I've got (though, in my case, my most recent flare up of NSU may be a new infection I picked up 3 weeks ago).