I am unable to hold pee not more than 10 minutes. i took urine culture and sensitivity, uroflowmetry, usg abdomen,kub with ct urogram.all test report are normal. how to proceed further, what are the test still i need to take. please guide?

I think you had too many tests for a simple symptom. Frequency should be treated conservatively if there is no infection or diabetes. Try reducing, tea, coffee, soft drinks and alcohol and avoid constipation. Also try holding urine for a few minutes more when you get the urge. Divert your attention with something like music,TV/movie, a book or some other thing. If not better there are meds for it.