I take various compounds flubromazepam for sleep. very rarely phenibut kratom on occasion and poppy seed tea. I have noticed I wake up with a bad back early in the morning 3 to 3 30 am. does anyone know if any combinations are bad for your kidneys. I piss ok normal colour unless I have had too much liquid to drink. I am slightly concerned but my bad back seems to go during the day. i was wondering if the drugs are fucking up my kidneys