Sir In Night Time And Even Day Time Also Frequently

sir in night time and even day time also frequently urine temptation in every 1 .5 hr and I consult a doctor he scanned and take blood and urine nothing shows.and given a medicine of Detrusitol in morning and epimag two times in a day, but no effect of medicine after a week. i was before paractised masturbating daily but i keep silence that in doctor . now i am stopped fully that may; it is happened because of that ?? please answer me !!!