In the last week my 5.5 year old black short haired cat has been sick 4 times. He seems otherwise healthy, still eating his 2 pouches of Felix per day and drinking as usual.
It isn't happening after he eats and the vomit is just like a brown liquid with a couple of bits of undigested food in it but never loads.
Any ideas what could be causing this? Do I need to be worried yet?