I have a RIR whose comb just suddenly flopped over. I noticed when a number of the other hens were jumping on her and pecking at her comb. Now she is petrified to leave the coop and I find her every morning and night in one of the nesting boxes. she doesn't seem sick, she is very docile and lets me handle her but I am afraid she will just fade away if she doesn't get outside and walk around. Any suggestions?