I always try not to drink too much water when in the Tropics. I know they say you should, but it only makes you need a wee every few minutes, and the sanitation where I've been was usually a stinky hole behind a screen. I noticed that the locals didn't go in for all this drinking fluids until the evening. I often get oedema in UK, but I improve tremendously in very hot countries as all the fluid sweats out and I look much slimmer. Also, eating papaya and mangoes (plus the strong sunshine) is so good for the skin.
Here in UK we've been having a mini heatwave, about 30 degrees. Everyone is exhausted and flopping about, but I do so love the heat.