i noticed about a week ago my 11 week old standard cochin limping. At 1st it wasnt to bad, but its gotten worse. I;ve checked for signs of bumble foot and there is no evidence. I mean its still mobile and can get in and out of the coop to the run. am just very concerned. It lives with 16 other chickens 3 full grown silkies 8 13 week olds, and 5 other other 11 week olds. It isnt roosting like all the other birds. Im really nervous. It's my favorite chicken. Is t just because it is a heavier breed. And how is this happening so young. It is eating and drinking and it doesnt look like any broken bones. I have no idea what is going on, and help?