Hi and welcome. I am so sorry to hear about your sick kitty. I would copy your post and post it to "health and nutrition". I am new here and am not an expert by any means. But, here is what I got:
We had a very sick cat and she just stopped eating, also. It was a totally different situation from yours, though. Maybe try mixing whatever he will eat with water until it is almost soup. Try that with very small amounts - maybe a level tablespoon at a time. Diarrhea and vomiting will dehydrate your cat. Feeding him watered down food in small amounts will have a better chance of being absorbed. We are doing this with our new kitty and it works well. Also, if he has had diarrhea and antibiotics his gut doesn't have any beneficial bacteria. If you find some food he can keep down maybe go to the pet store and ask for some probiotics to sprinkle on the food he can handle. That will help repopulate his gut with beneficial bacteria and help curb the diarrhea.
Have you tried canned tuna juice? Maybe a teaspoon of tuna? Those were the only things our sick kitty would eat and not turn to diarrhea. What kind of human food does he crave? Maybe try very small amounts at a time. Sorry, that's all I've got. Try posting over in "health and nutrition" and chances are you will meet some real experts who can offer you better advice than I have. Best of luck.
We had a very sick cat and she just stopped eating, also. It was a totally different situation from yours, though. Maybe try mixing whatever he will eat with water until it is almost soup. Try that with very small amounts - maybe a level tablespoon at a time. Diarrhea and vomiting will dehydrate your cat. Feeding him watered down food in small amounts will have a better chance of being absorbed. We are doing this with our new kitty and it works well. Also, if he has had diarrhea and antibiotics his gut doesn't have any beneficial bacteria. If you find some food he can keep down maybe go to the pet store and ask for some probiotics to sprinkle on the food he can handle. That will help repopulate his gut with beneficial bacteria and help curb the diarrhea.
Have you tried canned tuna juice? Maybe a teaspoon of tuna? Those were the only things our sick kitty would eat and not turn to diarrhea. What kind of human food does he crave? Maybe try very small amounts at a time. Sorry, that's all I've got. Try posting over in "health and nutrition" and chances are you will meet some real experts who can offer you better advice than I have. Best of luck.