My cat had a fight a week ago. After the fight he stays inside all the time, is very frightend and is eating much more than before the fight. He is in the kitchen all the time and as our kitchen doesn't have a door we have to give him food because otherwise he will jump on tables. We give him canned and dry cat food, meat, fish, cheese and other food. He is eating everything we give him and is asking food from every member of my family. Before the fight he was 5 kg and now he is almost 6. Before fighting he was very active and wasn't gaining weight but now he is sleeping or eating. What can I do to make him eat less and not go to the kitchen?