Frequent urination. Every 15 minitues.

I have a frequent urination issue..so I'm taking treatment for this problem from 2018.but in this issue I have one Major problem..if I'm busy in something urine frequency is normal if im in free  then i need to go for a urine for every 15 minitues .so first i consulted with urology docto he took scan and some urine test and result came everything thing normal.then he gave some medicines. at first the medicines helps to controled frequent urination and I felt like back to normal..but after some days the frequent urination again starts..then he advised me to consult with psychiatric doctor..so i consulted with psychiatric doctor then he advised me to admit In the hospital..so I i was admit in the hospital for 7 days for psychiatric treatment..during this treatment frequent urination issue is decreased but not back to normal...now I changed 3 psychiatric doctors but the problem is still continue...so next what can i do