Don't know if it is anything to worry about but I am finding that I am incredibly thirsty - it comes up on me very unexpectedly and then I feel so dehydrated and have to guzzle about 3 glasses of water in one go - have to drink throughout the night too - which is awful because it means I have to get up to pee about ten times a night. I remember reading ages ago about thirst being related to diabetes - I have that glucose test in Nov - could I have it?