My Barnevelder hen is very unwell. She has always been more to herself and not very friendly but I noticed her staying completely by herself a couple days ago. Was able to catch her and she feels very thin and lethargic. Her poop is green pellet like and watery. I have recently dewormed all my birds with safeguard. I see no signs of mites or lice. Have given her a couple soaks now in epsom salt. Able to syringe her some electrolyte probiotic water and she lets me. Was able to get some scrambled egg in her some yesterday but no interest now. Syringed her some water down layer feed just to try and get something in her. Any suggestions on what else I can try and offer her that would give her some nutrition? At this point I'm just trying to offer supportive care to see if she cant pull through. Also how much syringe fluids should she be getting in a day? She is only 9 months old.