Hi Helen.
We've been having a bit of a tough time with other things, which is why I've not been online.
Cora's heart rate is high, it went bonkers at first then seemed to settle, but I do have to check her respiratory rate every day. Apparently it should never be higher than 40/minute, and she is thin, so she gets monthly check ups at the vet now.
If you don't get any sense after the holiday, I'd go the specialist route. It cost me a fortune, but it was worth it, and I can highly recommend the woman we saw, you can have her details if you want. They only did what was absolutely necessary, because of the way she is. Difficult, bad tempered, stressed etc
Can you break Vidalta in half? You're not supposed to with Felimazole, but I did, and gave her half a tablet a day. I read somewhere that it's OK so long as you don't ingest any yourself.
Prednisolone tastes vile, by the way, so hide it well!