Are her legs or hooves warm? That can show an injury.
Have you worked her since you got her? She might have pulled something, or strained a muscle she forgot she had.
Put her on stall rest and call the vet. He/she will tell you where to go from there, whether it be the farrier for hoof problems, or a chiropractor for stiffness.
Also when you say limping, is it her foot? Or her shoulder...if she tosses her head up as she limps, it's her shoulder, if she puts it down when she limps, it's her foot/hoof.
Good luck on your mare. Posted via Mobile Device