Was sex protected or unprotected?
It could be a STD but it could be several other bacteria from anal
Conceivably an STD but probably not. Urethral discomfort tingling could indicate a urethral infection, but usually abnormal discharge is the main. Gonorrhea in particular is very unlikely without obvious discharge. Bladder symptoms like urinary urge is generally not an STD symptom in men. However, chlamydia is possible in this situation.
And Vance is correct that anal sex can result in urethral infection with normal fecal bacteria. Uncommon but possible.
You should see a doctor or clinic for examination and testing. Most likely nothing will show up, but better safe than sorry.