I came home yesterday from work and found 2 of my Silkies laying on the ground panting. They are around 6 weeks old. They would not walk. I picked them up and got one to the waterer and she drink a little but the other one wouldn't. I got them inside in the a/c, put water on them and gave them some watermelon juice that I had. They will not walk and have their legs out in front of them. They are holding their wings all of the way out. I checked this this morning and they are breathing normal and look alert when I pick them up but still can't walk and they still pop their wings out. I gave them some Gatorade and have just been keeping them cool. Is this heat stroke or something else. I have never had a chicken do this and I want to make sure I am doing everything I can for them!