I drink loads of water - I usually have a mug of hot water with a slice of lemon in, first thing every morning ... I drink a pint glass of ice-cold plain filtered tap water with my lunch and evening meal, I take a pint of it to bed with me too - I also changed to de-caff coffee and tea (coz the caffeine can apparently cause anxiety in some cases) - I drink 5-6 mugs a day, I drink caffeine-free diet cola throughout the day too .... and sometimes have another couple of pints of water "on the go" too - yes, I DO go to the loo quite often - lol - but I feel that it's doing me good! My skin, hair and nails seem to be benefiting too!
Best o'luck'n'stuff