Where to start? Buff Orp 2 yrs old.....hasn't laid in about 3 weeks.....approx. 3 weeks ago she began just standing still....feathers puffed out but eating and drinking ok. Over the next week standing more, eating less but still drinking. Checked for mites or lice - see no signs. Poop began getting watery and loose - no worms in sight - thought it might be lack of eating. Began treating with Corrid in water - treated my other two chickens as well. Isolated her for 5 days. No change. Hardly eating at all if at all - but drinking. Treated separate dose of tetracycline in water. Face/eyes are lucid and perky. Put her back in coop, but she got picked on probably for being weak so separated her again after I saw they were picking on her. She's in the run in a separate part away from others physically. Weaker this morning - wouldn't stand up. Put more corrid in water. Dumbfounded! Am not able to do a vet visit. Am trying my best to treat her and keep her comfy. I did do warm bath last week but never felt like an egg or bad smell or anything. Any clue????