By all means find another Dr. now. For five years I had severe burning when urinating. My primary care had no clue and after a year said "Maybe see a urologist!". I went to three different ones at the same office, over 5 years, ran all the test, did the scope thing three times over a year and they had no clue. Spent time in the ICU peeing pure blood all day and passing clots, after all day the sent me home with no instructions, no help.
Went to a different Dr. in a different area. We set down across from him at his desk on the first visit and I asked him "Why all the burning when I pee"? He said "It's the cancer". Bladder, prostrate and limp glands.
Get another Dr.
David