How long does it take to recover from surgery? Specifically appendicitis?

She should be quite safe to go to Disneyland about a week after the stitches are removed- but the question really should go to her doctor for the recommendation. You wouldn't want to go while she still has stitches, no. As far as the blood when she goes to the bathroom- that sounds like a small hemorrhoid or a tear. You really do need to let your parents know about that. It could just be from constipation after the surgery, and her straining to go has caused a small tear, which would heal on it's own if matters get some relief. Your parents will know best how to help with that. It's not dangerous, as in causing death or serious illness- but it is something that needs to be taken care of before it becomes a big problem. Just tell your parents. It's embaring, but nobody dies of embarment. And your parents already know where all the birthmarks and freckles are, so they aren't likely to curl up and croak from hearing about this.