Thank you so much for all your help i really appreciate it. I have saved both the links and i will make an appointment to go back to the vets this week rather than wait the month she suggested. The veterinary nurses are actually in the premises from 7am so she could actually get the blood drawn before her usual morning feed around 8am
I have spent over £1000 so far and really apart from knowing she has cushings there has been no improvement for Bo.

Thanks again