Thanks so much for your replies guys.
I too have B12 every 10 wks post op but that is more to do with not being able to metabolize that after having a gastric bypass.
I did find out though, quite by accident that liquid morphine (oromorph) can actually ease, if not stop, symptoms from dumping syndrome.
Anyways, that's by the by, as far as I know it is nothing to do with my back, I have never had back trouble but the geniuses here put it down to trauma caused by repeated surgery to my foot, the same one that suffers from the nerve pain. They "suspect" that damage was done to the nerves either by the repeated surgery (7 ops & skin grafts) and bone infection and then amputation of my big toe but they have never done a MRI or CT scan despite being aked again and again.
It is really driving me mad. I am on so many pain killers (Tramadol, Oxynorm, Naproxen etc etc etc) and I just can't get any respite.
There was an article in the newspapers or such that did associate nerve pain in t the legs with gastric bypass (I have no idea how) but I, like an idiot, can't find the article now!