hi i bin having sore back and side off and on now for about 3 years some times i have a hard time peeing like i have to go but cant but this time i have a sore back side and leg and for the last 3 days i had the feeling like a had to pee but never could and today i cant stop peeing i got a blood test and urine test 5 days ago it all came back good and i got a mri 5 months ago and same thing they cant find any thing. can u help me