So my horse has just recently (2 weeks) became kind of off in his gaits. Not quite lame but not normal either. I've been taking it easy on him and not working him really hard but about a week and a half ago when I was lunging him I noticed that he was cross firing at the canter in both directions. He would pick up the correct lead initially but then change leads behind after a few strides.
I've given him a few days off, and then today a girl came to ride him (hoping to take him to a local show on Sunday in walk/trot) and he seemed ok and then I told her she could try to canter him and see what it felt like and he cantered nicely for about 10 strides, crossfired and dropped to a walk acting as is he couldn't get his hind legs under him all the way. Just enough so that he wouldn't fall but still walking. It looked awful! He did it for a couple of times around a 20 meter circle and then walked right out of it like it never happened. What is wrong with him? The vet is coming on Thursday but I'm going crazy not knowing how serious this is. HELP!
Here is a video of the girl riding him after he walked out of it. I wish I had my camera while it was happening! Does he look bad to you? Have you seen what I described in another horse? How serious is it? Thank you!
Stifle Problem? - YouTube