Ok, I think this possibly pain in kidneys, or reproductive. In the first she looks at foot before starting, in the second she also does pluck pulls like discomfort. Birds can have referred leg pain from internal pain in the kidney area and reproductive area , ovaries or testicles.
The possible cause of kidney pain , could be citric acid from the oranges . Citrus fruits I avoid, but if fed should be sparingly. Or possibly kidney infection.
This also could be nutritional deficiency.
Bananas don't have a lot to offer other than sugar , apples aren't much better but at least have fiber , citrus well birds don't need dietary vitamin C , and citruc acid can cause issues, and again a lot of sugar.
She needs foods with a good source of vitamin A. Mango is a good source of vitamin A, I think Papaya is as well. Better fruits and berries are blue berries, blackberries, raspberry, plums (remove pit) cherry remove pit. Fruits are generally recommended to only be 10% of daily diet .
Peppers are a good source of vitamin A , and most parrots take to them well. The deep yellow orange and red bell pepper, tho even green have A . Red Chile pepper. Birds don't have recepter for capsaicin so it's fine to feed hot ones too.
Sweet potato are also a great choice for vitamin A , fed raw or cooked. Many birds take to them very well cooked and mashed and served warm. And squashes , like pumpkin, butternut, acorn squash plus you can keep them eat the fresh raw seeds, or lightly toast to save and serve later.
Don't forget the leafy greens; many parrots take to them , they naturally eat greens in the wild. Rainbow Swiss chard , mine love the stems as well great source of vitamin A, as is romaine, human grade dandelion greens, mustard greens, kale and more.
It is believed toe tapping in eclectus is linked with low vitamin A levels , possible calcium and vitamin D. Her diet is definitely deficient in vitamin A , and other nutrition.
I'm a big believer in a little animal protein. Boiled egg or scrambled egg, is a great choice, has B12, vitamin E and a little vitamin D I believe. I've not met a parrot yet who didn't love eggs .
Sprouts also active seeds and grains making them much more nutritional. Definitely get into sprouting!
If nutri berries are available at your part of the world , they are taken to well be seed eaters and have pellets mixed in.
Diet changes can take time , and you will have waste , and just because something is rejected baby times , keep offering, many times they will eventually start eating and enjoy. Fir example I had a parrot reject leafy greens for 2 years , they eventually became one of her top 3 favorite!!!! I offer by abundance like how birds should be weaned. That is I don't take away their seeds or other foods ( except I would stop citrus, and really cut back in banana) but just start offering more and wide selection. I find offering on a flat surface outside of cage and letting their curiosity come and explore the new foods . I offer chunks , mine like to pic up with feet and eat , but you can offer chunks , halves , or shredded or mince or combination to see what she likes.
Because she already eats a few different things, I think it won't be long before you have success. Even my Budgies eat everything single food I have mentioned so far!
I'm very proud of how lush and sparkling good health my flock show , because of the great diet they eat.
I would not do added vitamins.
Did your vet do blood work?
Can you share poop pic, fresh poop, other than first morning poop
is there anything that we can use lets say to treat itchiness there is no harm to try i suppose.
