X2 means, "I agree with the comment and it would be silly to say it a second time."
X3 means, "I agree with the comment and it would be silly to say it a third time."
This can go on and on and on...
Sometimes they just need a little time to heal. Another thing to look at is the bottom of their feet. There is this thing called bumble foot. Does she have a big ball in the middle of the bottom of her foot?
That one has sturdy legs and a lot of comb for a hen at 11 weeks. My bet would be rooster. I am NOT an expert but am a momma of two buff Orpington hens who are 1 year olds. Your chickens are lucky to live in that fabulous expanse!