I'm also sorry about what's going on there.
Yes, I've dealt with that, and it's not easy.
I agree with Rottenrot, that seeing the vet is your best bet. Though, the different one, the messed up days, etc. are a problem, I know.
Prayers are being said immediately for both of you for wisdom from the vet, certainty in you as to which path you should take. (((Hug!)))
Love All Life, Thank You For Posting! :)