I noticed she was limping a little yesterday but it was almost dark so I didn't get a proper look. Today she came out of the cube very awkwardly and can walk but its obviously horrid for her and she just sat down again in the run, and then came out for some corn but when I looked out again she was just sitting on the ground (cold!) so I've caught her and put her in a straw-filled box in the kitchen.
I don't think its her leg, though. Her breast is red raw from her breast bone down.
Any ideas?