Hi, thank you for asking - she's ok.
She was still a bit limpy when the vet checked her over but they said her leg joints, hip and spine were ok and it was most likely bruising and shock. She's back on form now, and her limp has gone although she still isn't running as fast as the others when they pelt towards me.
Lesson learnt here, we've been lucky it wasn't more serious. There have been two new horses come to the yard so heightened paddock tensions, I should have been more diligent.