I got digital xrays of my horse's front feet and the report of the vet.
The toes are too long, the left heel needs to be supported better with new wedge shoes, the shoes were too small, the widest part of the shoe was not supportive enough at the frog where it was widest, and the shoe is placed too far forward.
As well, I got my original farrier to come out and consult today. I was overjoyed when he said he would take us as clients again, as he has moved closer to our neighborhood. He pretty much said the shoes were not supporting my horse properly, making him walk on his toes because the heels were not supported well. He mentioned that my horse had a tendency for underrun heels, but that he was always able to manage him without wedge shoes. And he took the time to see my horse move - the other farrier did not do this when I told him my horse was getting gimpy. And he also took the time to show me what was happening to my horse's hoof and how and why he was moving the way he is. I was so relieved and gave my unsuspecting farrier a bear hug. I hope we will soon be back on track again. Happy, happy!