I thought I had it too at one time, but I don't know really what I had. I think it was just an infection! I could drink like 2 litres of water at a time, in like 20 minutes (thankfully it takes a while to get through your system, so I had time to actually get home and to the bathroom before I really had to go!). I was tired all the time, thirsty, going to the bathroom lots (well to me it was lots, or it seemed like it!), so I went to the doc and he gave me all these tests and everything, and said everything came back fine. So I guess it was just an infection. I hope it's not diabetes!