About a week and a half ago one of the RSL hens started slightly limping. I ignored it the first day because it was so slight it was almost not noticeable. It got better and stopped limping, but now all the sudden its swollen and warm. What should I do, this particular chicken does not like being separated. Should I separate it anyway or separate it with another chicken as company. I would provide pictures but my phone is currently broken. The best way to describe is that its normal color, but enlarged hock and around the area were the toes meet. Is there a possible internal infection?