"Surgery cancelled 5days before"

I have been waiting since August for a date for surgery got date for 13th December and my pre op for 8th.

I went today for pre-op told surgery is going a head only to receive a phone call today 8/12/16 few hours after pre op to say sorry but they have cancelled mybsurgery (hysterectomy) as there is only one surgeon and an emergency has came in an needs my place. 6 months of waiting for this and 7years of beingbun pain and not knowing what is causing the problems I have. Find it very hard to believe that there is only 1 surgeon who can do this surgery and other patients get made to wait in agony for another month an that's even if they don't cancel again.

Being a full time career for my son who has autism with no help is hard enough with out being in total agony an not being able to take painkiller throu the day is even worse. I am angry upset and disappointed that I have been tossed aside after waiting for so long an 5days before it gets cancelled