We just got back from a 12 day trip to WDW. We've been coming for 18 years and my youngest has been using a wheelchair at WDW for 16 of those years.
She had CP and multiple other disabilities.
I'm so behind on things after our trip, and I tend to get long, so here goes a short answer.
You can take your DD to request a Guest Assistance Card (GAC) at Guest Services in any of the parks. The GAC is valid in all the parks (but not the water parks) and can be given for up to 6 people (the person with a disability plus 5 members of their party). You don't need a new one each day, it will be valid for your length of stay. There may be times when you have to split into groups of less than 6 people (some rides/attractions don't have room for 6).
Be ready to explain your DD's needs - in your case, the major need would be to bring the Panda in lines and have it treated as a wheelchair. It should be able to fit where ever a wheelchair would, but since she is small and probably sits lower than a person in a wheelchair would sit, she may not be able to stay in it for some rides that have wheelchair cars (Aladdin's Magic Carpets, Pooh, Buzz Lightyear). When our DD was little and more easily "portable", we took her out of her wheelchair as much as possible. Depending on your DD's size, she may be able to sit on your lap or in the seat next to you.
Spinning rides (like the teacups) were good "tight muscle looseners" for my DD. It's kind of hard to get her on those rides now at 18, but they were helpful when she was littler. We also took her out of her wheelchair for stretching. You can go to First Aid in any of the parks and use a cot or got to Baby Care in any of the parks -both good places for a quiet, cool rest.
One of the other things we did to stretch was I would place her lying down face up along my legs with her head at my knees and her hips at my waist. Her legs would go up along my chest to my shoulder. That provided a good stretch of her knees and helped a lot with leg cramps. (I hope this makes sense). I've got another way to relieve cramps, but it's even harder to explain. The hot tub is good too, like roadtripper mentioned.
Also, dehydration can make leg cramps worse, so make sure she is getting enough fluid. Since you say she is a non-eater, you will be in control of her fluid intake, you would want to watch for a decreased amount of wet diapers/urination or dark urine. If it doesn't change from her normal, she's probably getting an adequate amount of fluid.
I see I ended up with a long. short answer. Think of some more questions and we'll come up with more short answers.
Have fun!
