No, Di, the only thing I've ever had surgery for is appendix when I was 7.

I drink a lot of water all day. And 1 cup of black tea in the morning and 1 cup of green tea with supper. No tea (or anything with caffeine) after 6pm. Everytime I get up to use the bathroom, I also drink another glass of water, so that's more likely the connection. I'm constantly thirsty (my blood sugar is perfect) and rarely ever feel like I've had enough to drink. I really feel the discomforting effects of dehydration, even at night. I've been that way for most of my life, including having to get up to use the bathroom several times a night...many midnight skunk-encounters on the way to the outhouse during my teenage years at the cottage!