I am sorry for the many diffrent types of pain you are having!
I cant help much with botox or any suggestions. I can say what has helped me most and given me back some quilty of life is my Neuro stimulator.
It is last resort after meds and surgeries dont help and still not yet approved by the gov. as far as I know.
I can send a hug and low pain wishes and wish I could help you more .
If you ever want to talk or vent we are all here for you Pono.
PEACE
BMW

p.s. dont give up keep searching and praying for that miracle!!!!!!