Have painful urination, did urine test for infection, ultrasound of bladder and kidneys, blood test, crp, cbc, etc , and normal. what could this b?

Dysuria: Painful urination in a man could be due to proatitis , an infection in the prostat gland. Even though your blood tesns are normal two important conditins must be test one is a urethal symdrome where only the tip of the urethra is inflammed ot the prostate gland infection. Both cases will be relieved by a coursr of anti biotics

A couple items: You might need a special culture for chlamydia, stop all supplements, or see if you are over eating certain foods such as tomato's.