Thanks Everyone.
I had done a trawl on the internet, but mostly they seemed to be about dogs dying
Her blood tests are all normal and her liver and kidney functions have both been tested and come back OK.
But she is lethargic, has a slow heart rate, her face has sunken in a bit in the past few weeks and she has bad diarrhoea and periodic loss of apetite. All symptoms of Addisons.
It's just a case of wait and see what the blood test says.

Vet has been great. When I took Stink in coz her runs wouldn't clear up, she started a thorough examination and questioning and decided to go with her gut feeling (if you'll excuse the pun).
Will keep you all posted.
9th