I have 3 year old comet hen. She eats and drinks but has been losing her balance and laying around a lot. She has also developed diarrhea. She had a pale comb so the vet said to give her geritol. The comb has regained it's color. He told me to give her a worm treatment which I did. Yesterday she just laid there for quite some time unable to get up and her poop was liquid and green. The vet said to give an antibiotic. I did that. Today she has gone from standing and eating to laying down unable to get up but she is still eating since the food is by her head. Her poop is yellow liquid with white stringy looking stuff and small black particles. She is very sleepy. In addition to the geritol for several days she has been given probiotics, electrolytes, and starting last night anitbiotics. Does anyone have a clue what I can do to help her?