Thank you everyone for the great advice. It was good to know that other people have managed to deal with this without taking too long off the bike.
My physiotherapist was a lot more helpful than the doctor with regard to suggestions for the bike setup to stop this happening again. I have been a good girl and stayed off my bike for two weeks; my reward is to be allowed to cycle again - low gears only, no hills and short rides only. The physio is also going to take a look at me on the bike. She also agreed that the running analysis wasn't going to help (so I've cancelled it) as I never have any pain while running.
Thanks again,
Bron