I'm waiting to hear back from a friend, but I thought I would get on here and ask you HGS peeps what you think might be the problem. So backstory: Friend's horses were running around the paddock playing and having a good time. No one slipped or fell or stumbled, but after it was over she noticed one of her horses was lame on his right hind leg. She figured maybe he pulled something somehow and iced the leg. Later on in the evening she checked on him again and he was still lame but with absolutely zero swelling or heat anywhere in the leg. Fast forward to today (one day later) and everything is still the same. Lameness hasn't increased or decreased. Zero swelling, zero heat. No flinching when you poke and prod his hoof or leg. He'll pick it up and let you flex it back and forward to an extent, but it's hard to tell if the resistance is due to the injury or just his usual arthritis in the hock. She's called the vet out and is just waiting on that, so in the mean time I told her I would ask on here and see what anyone else thinks. I'm thinking the injury may be up in the hip like maybe he just took a wrong step and sprained it or something since there's no swelling and heat in the lower leg.