Thanks, everyone. The syringe feeding is going okay...not fun, but I get it done. I'm not really sure she's getting enough tho. And she still won't eat any kind of food. But she acts like she is so hungry.
Last resort I had some kitty treats in the cabinet and I tried those and she ate them! But now she's only sort of eating them. I thought tonight I'd buy her some more of the treats and maybe some cans of wet food that she hasn't tried yet. Maybe the stronger smell will help her want to eat it.
I just don't know what to do with her. If the vet is right about her heart causing it, then the medicine should help and she should start eating, but if she doesn't I don't know what to do.
Effects of the medicine may not be immediate. Give that more time.
Try some baby food. Chicken, turkey, beef, & lamb. It's what Thomas ate near the end and our vet was the one who gave it to him first. I remember she had to stop feeding him even tho he didn't want her to. She was afraid the car trip home would make him sick if he ate too much. (She was right, too! )
Susan