I have a 2 week old barred rock that I noticed limping yesterday. She won't use her left leg and uses her wing as a crutch to get to food. I've felt her legs to see if it's a slipped tendon but it's hard to tell. It almost feels like there's no tendon there at all but I really can't tell. But I'm not sure what to do! You can tell she's in pain because when's she's laying down she shakes. it's breaking my heart. Help!