"what is a floating waiting list!"

When you eventually get to see a consultant/doctor they are fantastic in Rheumatology. i need to see another dept which was referred by Rhuematology as an urgent over a month and half ago. when i rang that dept and they said that all consultants put down urgent on the forms! and they need to do a full letter at this time im on a floating waitin list (what ever that is!). All this time i am in agony as i can no longer take my original pain killers. Trying to get through to anyone on the phone is impossible. Im at my wits end now!