I walked out to hay my two horses today and realized that my pony (13 hands) not sure of the breed.. Was limping pretty bad, she seems to be verry uncomfortable with putting any pressure on her front right leg, it's not swollen, there aren't any heat spots, and I picked her hoofs to make sure she was comfertable there... I don't know what else I should look for.. Any suggestions?? The vet is a last resort, but I will if I have to.