So, my five year old quarter horse stumbles/trips frequently and has even fallen down twice in the year that I’ve had him. He fell once while having his front foot picked in the cross ties and once at show while we were waiting for our division. We were walking he put his head down to smell poop or something and fell to his knees. Both of these things my trainer dismissed as him being young, lazy, and not paying attention to what he was doing. This is the first horse that I’ve owned but have been taking lessons since I was ten and I’ve never had a horse fall doing either of these things in the past. He also trips/stumbles a lot while at the trot and canter. When I first bought him my trainer blamed it on hind end weakness from being out of shape. And he was out of shape and he does trip less now that he is in better shape but it does happen more than I would consider normal. Anyway, my trainer had me convinced it was nothing to worry about but he had his spring shots and whatnot today and I mentioned it to the vet and she was like yeah that’s not normal and I’ll have to come back and do a lameness assessment on him. Anyway, since I’m impatient does anyone know what might be causing this. He doesn’t appear lame. I watched a video of us in a lesson a few weeks ago where he tripped/stumbles and was able to get a picture of the trip. What happens in the picture happens a lot at the canter especially in the indoor which my trainer blames on the footing. Anyway, I’ll stop rambling, any advice would be appreciated. And yes I know I’m fat and my position is terrible so if we could just focus on what’s going on with the horse I’d appreciate it. Thanks in advance for any help.