Im sorry for what you and your little one are going thru. Its a shame that when its not an emergency no one will help you if you don't have insurance.
Did they give her an antibiotic? Ive read if you have a slight inflammation of the appendix sometimes this will calm it down and it will go back to normal.
I have 3 kids and I know how scary it is when they are sick, but to have a Dr diagnose this and do absolutely NOTHING but the wait and see has got to be painful.
If you don't feel confident with him get a second opinion or take her to the ER.
I wish the best for the both of you, and keep us posted on how she's doing.
Lisa