Talk to Urologist on Urinary Issues

Hi, I have a very weak stream of urine for the first few seconds and I have to sit for hours to empty my bladder. Little bit of pee comes out every 10-15 minutes after waiting. When my bladder is full or when I need to pee, I get nerve pain in my right side of lower back, lower leg, and foot (right side only) I also have nerve pain in the right side of my tailbone, even after peeing. I feel like it is pudendal nerve entrapment, what type of doctor should I vist for a confirmative diagnosis. I have consulted 5 doctors so far with no progress or diagnosis.