^ this is true, a chronic UT infection will cause back pain and loss of bladder control.
a whole lot of stress management will probably work ....
lots of stress management it is impossible any other way!
i have had the same symptoms as you for years now, waking up several times a night to pee, taking 20-30-45 minutes often times, its torturous actually having such bad back-pain, finally getting comfortable enough to sleep and then ~ pee-pee time...haahaah
what has worked for me for starters, honestly has been turmeric/curmerin(please do google why), try relaxing and meditating on the thought of love and sharing at the start mid and end of your day to help relax the bladder and vertebrae, while burning Orange&Green Tara or Cedar/Pine incense, try Green Tea, sleeping flat on your back, and acupuncture or reiki.
here is the Female Antahkarana, maybe print one of these and place it some where you can focus on it for 3-5 minutes at a time...the Antahkarana is an ancient healing image. there are several but here is the Fem version.
its easy to allow oneself to walk-in to that reptilian primitive help me now damn-it im in type pain survival mind-set - to not look back forgetting about the love and compassion that is our life. love is the life blood of humanity, keep yours and ours all pure as you are by exerting and allowing love compassion and acceptance.
^here in lies the great healer, for no matter what ails you it will be over-come over-time.