I have a six year old Golden Comet hen who seems to be having issues with her balance. She can't seem to stand from a sitting position without help. Once I boost her up she can walk, but if she tries to move quickly her wings kind of pop open to steady herself. She's not flailing around or falling over, no head tilting. She's our oldest bird, but has never had any health problems. Her vent is clean and she doesn't have any injuries to her feet or body. I did notice her limping a while back, but it wasn't constant. I checked her for bumblefoot, no issues there. One odd thing is that apparently all the feathers she's grown on her belly and vent haven't had the keratin sheaths chewed off. These are full length feathers so that's something that has obviously been going on for a while. Any ideas? She is my most favorite hen, and I would hate to see something happen to her.