Let me clear up the trot issue. Milo has one mode of movement and that is to walk, unless of course he's on the lower pasture and he thinks I have a treat, then he runs rather smoothly up to me so I know he's got it in him...LOL. On the lunge line I can get him to do absolutely nothing but walk. In the saddle or bareback I can get him to a canter rather easily, just not on the ground. I don't resort to fear or pain tactics to move him.
As for the incredibly bad attitude and ear pinning at me today...well... better eyes (and hands) than mine checked it out and Milo exhibited the same behavior while just on the lead line walking. After a thorough look over it turns out that he is severely sore on one side in the rib area as well as a knot in his neck. So for the next few days at least the only thing we are going to focus on is TLC.
While I feel bad that he is sore, I am thankful for the learning experience.