Hi I have a year old rooster and something really strange has been happening he out of no where falls from where he sleeps and he starts twisting his neck upwards and is not able to stand and he gets all stiff but when I pick him up he goes back to normal in a couple of seconds. I’m starting to get really worried because it has happened twice on separate days. He is eating and drinking normally. His poop is normal as well. I just don’t know what to do.