Excess urination thinking problem.

All the time I ponder only one thing that I have to pee. Sometimes it cause some sensation which make me uncomfortable and sometime I got irritated and angry too untill I passed urine. Every day I drink water almost 9 to 10 glass. Before go to bed I already passed urine but within a sec I feel again to go for pee. If I try to not to go for pee, I can't do anything or I can't sleep. It is happening with me incessantly. Sometimes I go for pee several time almost 5 to 6 time under 2 to 3 minutes. Sometime it happen whole time and I found that i am surviving with this symptoms mostly in night . It is happening with me from 5 to 6 year and I don't have idea what is it. I have already done my treatment and I got many tests done but everything is fine, there is no issues I found in between .I have shown my problem to urologist and gynaecologist too but there is no problem.