Given his age I would say at the very least you need to do a bit of bloodwork and a urine test. I know it can be expensive but these tests will give you an indication of how his kidneys are functioning and other things that naturally happen at this age. Most importantly he needs to eat. Can you put something smelly or enticing on top of the food to get him interested?
I am assuming here he eats wet food?
Maybe the vomitting is stress from being force fed??
I am sure others will be along to offer you some great advice but as I said I think that at the very least those 2 tests will give you an idea of what your dealing with and also how your kitty is feeling.
Tabitha April 10, 1995 - August 23, 2013
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Sophie Aug 30, 2011
"UNTIL ONE HAS LOVED AN ANIMAL, PART OF THEIR SOUL REMAINS UNAWAKENED"
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