Hi Daniella,
I think " med tolerant" may be a better term than "med resistant".
Resistant seems to insinuate that you have some control but are resisting it.
Unfortunately after months and years of certain meds we may feel as though they are not helping as our pain is still there or more severe when in fact we have just become tolerant to the drug and require continuing higher amounts to get the same amount of pain relief. Unfortunately in the long term, totally depending on drugs for pain relief is a flawed system of pain control, it does leave us in a very vulnerable situation for sure.
I think your doctor is actually on the right track here. It seems he wants to eliminate the possibility of your pain being from some other source but at the same time provide a better quality of life for you.
I think it is a very good decision to try some blocks, epidurals etc. These maybe a viable alternative as seemingly your body has become so tolerant that your meds are just not working for you. Even to give your body a detox from what you are having and then start a new regime makes the block/epidural option a good one.
Whilst there maybe some risks they are not huge and to possibly find a different way of managing your pain rather than medications, it is a good option.
These blocks to may help you with your PT too and this is a plus--pain is far worse when we are not moving our joints. As painful as it maybe, it is only going to get worse from lack of mobility.
Heaps of luck Daniella, I do hope this doctor can sort things for you.
Love Tayla
PS-I don't want to seem anti drugs ! I am not against drugs, I take them, but I just can't see the point of taking something that I know is no longer working for me.