My Urologist Has Not Been Able To Pinpoint The Root

My Urologist has not been able to pinpoint the root cause of overnight bed wetting. A recent sleep study was inconclusive. Medications include Amlodopine, Levothyroxine and Tecfidera. I have tried numerous medications, including Desmopressin, Oxytol patch, Myrbetriq, etc. no liquids after 6 p.m. I cath every 4 hours. I don't drink any alcohol, juices or caffeine. The only other thing I can add is that I eat gummy bear snacks prior to bed. I added that info only because I JUST read something about the water content in that candy. Please advise. Thank you.