I have a large batch of chicks, in a 10 x 10 coop that I hatched out. This chick is about 5-6 weeks old, fine yesterday. today I found it laying in the dirt. Picked it up it was really hot, it has strength in the legs but only to push and then flops back. Mixed up some vitamins a little on the strong size dosed it some, it drank well from a syringe that I supplied droplets from. No signs of improvement. Any idea what this could be I have had baby chicks with this issue out of incubator. But not one that was well on it's way this old.