Actually, he's doing quite well.
The new meds seem to be helping a lot. He doesn;t seem to be in constant pain and he is back to enjoying his meals and walks again. Still quite a fragile beastie, but much happier than he was.
This is the last tranch of meds really. So, as long as these are keeping him comfortable and allowing him some decent quality of life we're ok, but there isn;t anywhere to go from here medically.
Probably bought us some extra time though. I am daring to hope I may still have him in the newyear