I have the exact same issues, a urologist diagnosed RSD in the bladder I saw her at cleveland clinic and says she see alot of it. I have the same issues you have but I also have the problem to where I cant go to the bathroom to the point they have to put in a catheter. Its been 5 years now dealing with it, I really dont have anything that helps accept that my bladder only gets worse when my pain is bad once the pain is under control whether I have to be in hospital or not it ussually helps my bladder. I am so sorry for what your going through I know how horribe it is. I dont think its the ketamine as I take the katemine also both the nassal spray and the lozanges and I had the bladder issues way before the ketamine.