Colt pot bellied and bad fetlock -- UPDATE
I went to see the little guy today and he is looking better and has more sparkle in his eye. I guess the last wormer was what he needed. She will worm him again in 4 weeks as per instructions.
As for his fetlock -- it also looks better, but now the other hind is doing the same thing, though not as badly.. HOWEVER, I looked at his feet today and they are not properly trimmed. Somehow my friend and I both didn't looking at that possibility before -- she: because they were just done by a farrier about 2 or 3 weeks ago and me: because I'm too opinionated on the matter and try to keep my mouth shut unless asked. However, when she recognized that he was now bringing both back feet too far underneath himself, the feet became an issue.
So, what this all means, I'm not sure yet, but once his feet are done we'll see. That should be fun because the farrier beat on him last time and today when I picked out his front foot, he fought and reared. My friend and I won though!!! And he then stood quietly. We're going to take our time doing his feet with lots of praise so he gets over it.