I know this has been covered before . . . but I have been told I need one as I have a polyps and a mass by my cervix that needs removing. I have put this off as with kids, dogs, horses etc. (and also being a bit of a wuss as have slight emetophobia) it's hard to organise and am feeling absolutely and completely knackered - I think from the horrendous Niagars falls periods I am having. Has anyone else had this awful tiredness ? Just want to sleep all day.