To paintedpastures - We thought it was the feed too, but they were no more then 5 feet apart in a huge pasture with no hay.
To MsBHavin - I said they couldn't stand on their own, of course I helped them stand up, and suck, walk around, someone would hold the mare, and I would lift the baby and put him up to her, and whatever he didn't get, we would bottle feed him... I am not a vet, so I do not know why else his IgG levels were normal.
To DeliciousD - We have alarms and cameras, so yes, we did see the pregnancy, and no, there wasn't. And as for the first part, that is what I meant, about the muscles, bones, and tendons... Maybe there was nothing connecting muscle to bone, because as you can see in the picture, it looks like he has no muscle.
Never discourage anyone if they are making progress and learning, even if it isn't at the pace everybody else is going.