Cats can't go more than 3 days, preferably less, without food. If they go longer than a few days they can develop a serous, potentially fatal liver condition called hepatolipidosis (something similar if that's not exactly right). I'm not trying to scare you, I just have lost a cat that way (he got sick and wouldn't eat, we even put in a feeding tube but he died anyway) and I hate the thought of anyone else going through such a thing. If Jimi hasn't eaten by tomorrow I would get him to a vet.