I like where Al is going with his thoughts. Looks like an injury to the hip/leg area. She could be just fine or coyotes will get her. Nature doing nature things.
The answer is both IMO. She's got old milk cow hips that also have some sort of injury affecting how she carries them. Look how far hee brisket protrudes past her legs and her football nose, both of which indicate to me she's an older doe (4+). Again, just my opinion.