Ok - all tests back and they don't explain anything! Bloods, liver all normal. X-rays - nothing has dropped or rotated, no pedal osteitis, good sole depth.
She is fine out on wet, muddy paddock but gets heat, a pulse and is sore on the dry lot with soaked hay. Its not the hay as feet stay cold and happy when shut in deep bedded stable so it must be that she cant tolerate walking on the compacted sand for too long. Vet is referring her to Scotlands guru farrier who works with the vet school. He said "you have a mare with exceedingly sensitive soles". She was in Eponas for 6 months - it all started swimmingly and she maintained the lovely looking feet she'd developed from being barefoot, no stretched white line, no flairs but then started being sore after re-shoeing and then footy on hard in the Eponas and also reluctant to work in arena at speed for anything more than 10 mins. I've never seen her as sore as she was when she came out of the Eponas. I boot her to walk her up to stable and back to dry out feet. Absolutely fed up - 2.5 yrs of trying everything and we still cant help her enough