Summer is a little over a week old and was completely fine until three days ago. We are not sure what happened. She is with three other chicks so we are not ruling out injury. Summer is eating and drinking, but limps on her right leg. She only uses it to balance and often times she keeps it raised. I took her to a vet, but all they offered was pain meds. I asked about splay leg and vet said it would be in both legs, not just one. She also said if it was a tendon there is nothing they can do. I’ve seen lots of posts contradicting the vet. It seems there are lots possibilities for treatment, but I am so afraid to treat her incorrectly. The vet mentioned Mareks, but the feed store we got her from says they are vaccinated so Mareks is unlikely. Any suggestions? I am attaching a video. Of course she always moves better when I film her.