Hi, im a teen 4-H member and just started a chicken project about a month ago. So i was at a chicken auction 2 days ago and purchased a wyandotte hen. She had overgrown nails (about 1 1/2 inches long!) and a very severe case of lice. I clipped her nails, bathed her, and treated her for lice and shes been seeming to get better ever since. However when i got her she would look like she was gagging and make those noises and had diahrea (with no worms in it) , and now she has regular poop and i havent seen her gagging at all anymmore. She doesn't walk much, she lays on her side and sits down a lot, hasn't layed an egg since i got her, and has just been very drowzy. I thought the drowziness was because of the lice so im giving her some electrolyte energy powder in the hens' water and it has seemed to help a little. But she drags her bottom and hunches down when she walks and then she'll suddenly just stop and sit down. She doesn't graze that much but is eating and drinking. Could she maybe have worms? She had a lot of worm symptoms but there are none in her poop. Is this all because of the lice? I have no idea, i'm a brand new chicken owner, please help!
Here's a picture of her as well, her comb is much brighter that the picture if that makes a difference:



Here's a picture of her as well, her comb is much brighter that the picture if that makes a difference: