My older cat had been sick and had been back and forth to the vet and emergency vet. My younger cat who is about three had anxiety as is and the situation has made it worse as she is very attached to my older cat. she threw up on Thursday ( this is probably the third time in her life) and has not been really eating. Bathroom normal she is playing and everything else ok but food. I don't know what to do. She does not like human food at all. Any suggestions