Thanks lovely. All related to my gallbladder. Was in out of hospital over Xmas to have it removed but every time they called me in for the op, I'd wait for anything from 5 to 7 hours and then they sent me home again due to lack of doctors and room in the operating theatres. 4 times that happened. So I've got to expect a call in the next 6-8 weeks. Until then I've got to put up with it, and it comes out of nowhere, my colleague wondered what the hell was wrong with me as I was perfectly fine and then bam .