[Bridge to Terabithia] Chapter 10

Someone please help me with these questions. You don't have to do them all. Just please help. I don't want to waste my points.

1. Why does Jess think he needs a gut transplant on page 56?

2. Why does Miss Edmunds say “My life has been worthwhile after all," on page 58?

3. Why has Jess's mother been worried about him?​