I also had microscopic hematuria on urination and pain on urination with urgency to urinate....3 weeks ago ...I had HDR Brachytherapy at UCLA for intermediate PC in March of 2018 ..........CT and Pet Scan nothing found 2 weeks ago.July 2019......no cancer cells found in urine had cystoscopy 11 days ago nothing found and been absolutely miserable ever since first pain on right side where uretha is then pain on right kidney.....now pain letting up and pressure on abdomen that brings on nausea is present.....Had heavy blood in urine first three days after cystoscopy then let up with occasional orange colored when urninating . My urologist has not offered any help says bladder and abdomen irritated due to prior radiation . Said flush out with lots by drinking lots of water...Did so and urine went clear now goes in an out of gold color. Becoming weaker and sleeping all day...I do not know if this is Cystitis or damage was done during my cystoscopy . Called to schedule appointment at a major clinic and they mention doing another cystoscopy and I respond absolutely not why would I do that when noting found. Getting desperate as to what is going on inside my abdomen and bladder
Since the uro said to flush with lots of water, try taking D-Mannose pills (readily available on Amazon). D-Mannose is very helpful for flushing our microorganisms from the bladder. This might not be the problem, but as far as I know (and I take D-Mannose twice a day, everyday), there are no side effects (assuming you don’t take more that what is recommended).
If that doesn’t work or doesn’t work enough, you could try Biofilm Dfense (purposefully spelled wrong due to moderators). But, be sure to read all of the reviews on Amazon. The company had some issues with quality control several years back which now seems to be behind them. I take it myself and find it helpful.
Good luck.