Hope I got the right place for this--I haven't been on here for a while...
My family was gone last night, and my friend fed my two horses. She said that the second horse, Buddy, was limping. I was surprised to hear this, because he is 8 yo and healthy. We went home and discovered he could barely walk. It's his left front leg that he is favoring, and when he walks, it's a very stiff walk and he doesn't bend that leg at all. I could not find any swelling or heat on his body/leg/hoof. I did see a new cut on his neck though--it's about halfway up his neck on his left side and only hair deep, but it does have a partly "U" shape, so he may have been kicked or bitten.
He has his normal appetite, and drinks his amount of water. I separated Buddy from the lead horse so Buddy wouldn't get pushed around more. Today he is a little better but quite careful with the foot; he will rest it on the ground like horses do with their back feet sometimes.
Any ideas on what it all could be? I will most likely call the vet out tomorrow.