I am 22 yr. I am going to Urine frequently for ever 90 min in morning and 2 times in night. I am taking 3lts of water daily. I have stopped taking water before going to sleep. But night 2 times and morning 10-15 times. I have no sugar. I am healthy. I feel more Urine to come but it is not that much amount. What should I do to control.in my class it is disturbing to me.