I am going to fight for him. I love him, and I want to make sure he stays happy

I have no idea what the heart problem is, but in any case they said he has a bad heart murmur. The vet said it didn't look good at all though.

I think I might see about getting some RC renal food from the vet, maybe a pouch or two even to mix with Almo and see if he'll eat it. Might do him some good if he's eating some of it at least.