Mslday
There are all sorts of different types of nerve block that can be done for different reasons - both diagnostic and therapeutic. That was why I asked about the type of block the OP had had done. I think you have misunderstood since I was actually saying exactly the same as you - that there are many different types of nerve block done in different places, for different reasons and which produce different effects and potential side effects.

I have had the same type of block (lumbar sympathetic block) that you are describing so you are not the only one with experience to share here.