Myrtle does a somersault

I went in to the field to give the cows some bread as we were heading out for a walk with Poppy.
The cows all came galloping down the hill. Myrtles front legs buckled under her and she went down on to her chin, her back legs kept going, for a moment she hovered in a chin stand, I thought they would return to the ground, but they kept going and she did a full somersault over her chin resulting in her head bending right back along her back.
When she landed I was sure she had broken her neck. She was lying there like this, apparently unable to move.

I screamed for Doug who was waiting in the car. We decided we had to try to get her head back in the right place and see whether she could move. She flailed her legs very enthusiastically, so we rolled her over so her legs were downhill of her and she managed to struggle up to her feet. We had to use a rope in the end because of the leg flailing.
She seems to be unaffected after the excitement.

She is 7 months pregnant so I guess she is heavier than her front legs are used to!