My cat was fed regullaly on Whiskas pouches in jelly, then one day he stopped eating it, (he is 14 years), so we took him to the vet had loads of tests done and they could find nothing wrong, "tempt him" they said ,so I bought him some Sheba , and he ate that ,loved it even licked his bowl clean. When we went on holiday I went to great lengths so that the Cattery would also feed him Sheba. When we came home the person at the cattery said he had turned his nose up at the Sheba so they had given him Felix, which he had loved.Back at home, as we had gone out shopping before bringing him home he again was give Sheba.Little monkey, I think sometimes a change is all they need, cats are very independent and only eat what they want,try something completely different.My cat will not eat human food, maybe yours will , a bit of chicken or tuna, best of luck.