It is possible that there was some irritation if the stone was passed. STDs and other infections are also possible. I would consider urine tests to evaluate for a UTI as well as STDs, such as gonorrhea or chlamydia.
If negative, a cystoscopy can be considered to evaluate for any trauma or anatomical abnormalities (i.e. urethral stricture or urethral polyp) which can cause the symptoms.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
Medical Weblog:
kevinmd_b