I have a six month old buff ORP pullet that's not doing well. I noticed a few weeks ago she was off balance and favored one leg. Checked for injury and found lice not many just a few. I treated her with poultry dust twice in two weeks and once with Adams. She seems to have a neurological problem, neck seems to curl funny, she's very weak.comb normal color. Is this from lice? Sick? Thanks