Previous posts are
Unexplained weight loss in 6 yr old male cat and
Update on Smokey's Unexplained Weight Loss
I thought I had the situation in hand but it seems the last couple of days he's been vomiting again. No loud meow's though before he vomits so I assume he isn't in pain.
I have been giving him Merrick's Grammy's Pot Pie after trying Wellness chicken and NV Instinct Chicken Formula and having him vomit or ignore the food. I wanted to get him on all canned because he seems to digest it better than a mixture of canned and dry.
When I started the Grammy's Pot Pie he had no problems with it and didn't seem to be vomiting at all. He had gained 1 1/2 lbs when he was last at the vet and I thought we were on the road to having him gain the weight back. However in the past two weeks we have had the flu and he has been fed what the other cats are eating both dry and wet most days but mostly dry. I wasn't able to keep him on the Grammy's Pot Pie consistently until the last couple of days. He also seems to have lost weight again and is feeling boney again. Yesterday and today I gave him Grammy's Pot Pie and he immediately started vomiting and continued throughout yesterday vomiting 4 more times. Today he has vomited 3 times immediately after eating the Grammy's Pot Pie. So I don't see how it can be anything else that's making him vomit.
Does anyone have any other food suggestions? It looks like I'm probably going to have to have that Xray done by the vet but I find it odd that he was doing so well before having his diet changed. While his diet was changed to mostly dry he did not vomit at all. I do have a can of Before Grain left, and plan to give it to him tonight to see if that stays down. It did the last time I gave it to him.
Any suggestions would be helpful. I'm wondering if the Grammy's Pot Pie was too drastic a change for his system when I started it again 2 days ago? but I've never found my cats to react to food changes.