For the benefit of others, in our particular situation, this is the advice I have received from our new vet:
1) Keep Willie's cage warm. This is the first and most important point about her surroundings.
2) Remove all perches and move all food and water to the bottom of the cage.
3) Keep her bowls and cage meticulously clean.
4) Provide her with filtered water from the refrigerator. Distilled water is not as healthy as filtered tap water.
5) Feed her 3 cc's of Kaytee Exact Formula, 4 would be even better
6) Feed her 3 cc's of water with a little optional juice (like grape). Also, a 50/50 mix of water and Pedialyte is even better.
7) Let her continue her normal food (Avicakes, Nutriberries), Pellets, some seed and nuts, veggies, fruits
8) Handle her only when feeding, watering, or administering medicine
9) Make sure she gets a solid 10-12 hours of sleep
10) Giver her Baytril twice a day.
11) Giver her a calcium supplement once per day.
12) Keep a log of her droppings. Make sure they are "healthy".
Love this new plan!