Sorry you're going through this. Just wanted to say that it's holiday time, so maybe there are just more appointments available? I've had hysteroscopies and various procedures and the last one was sprung upon me the day beforehand, because they'd had a cancellation! So please don't let it worry you, just be glad to have it over soon ;-)
Btw, I've had polyps removed under a general anaesthetic and it was easier (in my opinion) that the walk-in hysteroscopy clinic x