Hi Dew,
I'm SO sorry to hear that you are in so much pain right now!!

It must be so awful to have a big break from the pain and then have it all come rushing back! I hope it settles down for you real soon and you are in my thoughts and prayers!!!
I agree with what Pete said, that it sounds like your body is building up a tolerence to the meds and that they might need to be increased if they can.
Ketamine used to work well for me and bring my pain down from an 8 out of 10 on the pain scale to about a 5 and half but now it hardly touches my pain. My doctor has increased it and it works a little well but he thinks that my body has built up a tolerence to it and that eventually, it will stop working completely. I think that is one of the reasons why he doesn't like me taking it all the time.
I hope that your appointment tomorrow goes well and that your doctor is able to give you something to help with your pain levels!!
You're in my thoughts and i'm sending many pain-free

's your way!!!