Is the condition of your back allowing for any kind of fix? Weaning off any kind of medication can be difficult to the extreme. Out of the meds. you are on, I am surprised that he picked that one medication in particular to wean you off of. He can lower the drug slower, and that would decrease the parts of being uncomfortable. If you are determined to do this, just remember there will be and END to being so uncomfortable. Keep that in your mind every day, and low and behold, you will feel better.
I have also had to do this with several medications. I do understand how bad it can make a person feel. I am in your corner. ginnie