I don't know what to do, I've never seen anything like this before!! Please, can anyone help? My 5 month old silkie pullet Sookie has been panting from a rapid heartbeat the past 4-5 days, she has slowly lost leg function and has NO body balance, she is not eating nor drinking - her head is stuffed back tightly against her body, neck making an "S" - all she can do is lay on her side. She is alert and seems to want to live, but how can I help? She was FINE a week ago, then a few days ago I noticed her acting slow and "sick", empty crop, so I isolated her and put her on meds... one day later she was weaker, empty crop, so I have had her in the house the past 3 days, syringing food and medicated water down her throat every few hours to no avail. Poops are greenish and look like undigested food in a pool of water. She was dewormed recently and has no lice, mites or parasites. I have given her Tylan as I believed she was gasping for air, but tonight I realised she is panting from a very fast heart beat - could this be making her so weak that she has completely lost the use of her legs as well as bodily balance? she seems quasi-paralyzed, her body stiff, one foot colder than the other, one eye not as open as the other - no eye bubbles, no nasal discharges or anything. All other flock mates are super fine, nothing has changed in their food or routine lately. They are penned inside for the winter and it's been very cold and damp but so far she was fine. This chatty happy girl has gone completely silent and my heart is breaking. Has anyone seen this before? WHAT CAN I DO TO SAVE HER??