I have 4 Bielefelder pullets that are 25 weeks old. None have started laying yet, but 3 are getting redder combs and waddles. The 4th has always been smaller and weaker. By weaker, I mean 3-4 times she has had a limp. The first 2-3 times was at a young age in the brooder and again around 18 weeks, which I assume was due to the higher roost height in the coop. Now her comb & waddles are still small and pale especially compared to the other pullets. Should I be doing anything special for her? I’m attaching a picture of her and a sibling.