Grace is lame :(

[H's mum]

I think you're wise to keep the vet's appointment and get her checked out - fingers crossed she's just jarred herself or trodden on something but (and I don't want to alarm you) H went drastically lame like that after a lesson - she was ok one minute then when she was in her stable she was stood on three legs - turns out she'd torn her annular ligament - initially my vet wondered if she'd just strained it - much the same as we do when we twist our ankles... in which case H would've been sound within the week - lets hope that's all that Grace has done - but you're definitely right to get it checked out!
I've got everything crossed for you!
Kate x