My 1st 3 months in Manila I did feel unwell at times, due to the heat, and adjustment to food.
With the heat, the dehydration, I had to combat, I took water with me everywhere. I also found a drink called Gaterade, it is very good for coping with dehydration, and is a pleasant drink, in different flavours you can get in most supermarkets. I recommend it, worth you trying![]()