Thanks to you all for the replies - the one thing that does worry me is the fact that her leg is already very swollen - will flying make this wirse and if so by how much...?
If it does swell will it go back down once we land or will the return leg make things even worse
I'd sooner lose my money than take the risk though I'm sure it will be fine
Guess its just "first time nerves" - hopefulyy if this flight passes off uneventfully we can think about going on a family holiday soon !!!!