I went to check on the girls and Priscilla (standard Polish) jumped up onto the roost pole. Mille (D'Uccle) was standing directly under where Pris jumped. I heard Mille squawk and saw her hunkered down. Her head started twitching and I took her out of the coop. She had a seizure and went limp. I thought she was dead,but she was still breathing. I brought her inside and she has perked up a little(holding her head up instead of limp, semi responsive) I don't know what to do PLEASE HELP! She is four years old and has never had any health problems. Could this be a stroke?