Have you checked her crop? How much bread do you feed? It isn't very high in protein for them. Fix her some scrambled eggs. You can also fix her some rice. I would put some vitamins and electrolytes in her water. Put her in a warm dry place.
bread has no nutriental value.........it really is bad for them! What fruit? maybe to much snacks and she got runny poo. You really should only feed them starter/layer and an occasional treat. Still think worms..have you dewormed her?
There is a poo chart on here some where. I will try to find it for you
It's right below her neck. It'll feel like a pocket. It's hard to explain. How many slices of bread for how many birds? As Sillystunt stated, bread is not good for them. It's okay every once in awhile, because they do love it, but not often. Too much bread and they will not eat their feed, so their bodies do not get the protein they need.