Jack was at..

Jack was at the hospital yesterday morning. He asked the doctor, "Can I eat anything?" in Japanese. The doctor answered, "Kekko desu". So Jack didn't eat lunch or dinner. Why? He didn't know the meaning of "Kekko desu" well. "Kekko desu" sometimes means "no thank you". But it can mean "Yes." In this case it means "Yes."
Last night, he was very hungry, so he ate too much. This morning, Jack had stomach ache and went to the doctor again.