Thanks for all the support so far - you guys are great
So had a call from the vet tonight, the test for cushings came back negative. But the bile acid response test, which measures the functional capacity of the liver, came back positive - was high before the food and higher after
Next step is an ultrasound to see whether its a localised problem or a more general problem - will be going to a newer branch of the vets for that as they've newer equipment and someone with more specialised experience reading the ultrasound, should know tomorrow when we can go in for that.
Maggie's soundo, wrapped up in a fleece on the sofa after her hydrotherapy tonight and in blissful ignorance
Will update once I know some more - thanks again for the support - means an awful lot. xx