Do I have a Celiac Cat ?

Hi I have a cat that I rescued from a cattery it was 12 months old and when I got it home after a few days it bagan to have smelly farts and started to have diarrhea and blood in stool. I naturally freaked out and realised my cat cannot eat manufactured dry or tinned cat food. It can only eat fresh meat or mince. With this diet there is no blood and the stool is solid and healthy. I took it back to the cattery but they played dumb and were no help. Has anyone had a similar situation with their cat and what was the diagnosis any tips on diet. My cat eats Packaged animal meat, liver kidney etc Mince meat Sardines Tuna