she had that happen, changed shape and went to a belly pointing down. Now she has this kind of flat rounded "tire" shape underneath. Its like the legs are right at the bottom wrapped round her sides? So difficult to describe. I had hoped dj would do better!
You're doing an earnest job of trying to explain, it's just gonna be easier to see in pictures... And hopefully that can happen tonight!
I don't know, unless she's started to foal and the baby is moving up. Or the baby is breach. Or the baby is two. Please try not to worry unless she seems in pain or starts sweating and labor and you don't see front feet. Since you have the vet on speed dial now, just keep an eye on her. If you have bran, make her a bran mash for dinner.