I think I read once that if you start drinking water regularly....your body will soon develop a natural thirst/taste for water.
Some people prefer putting a lemon slice in their water to give it more flavor. You can try drinking lemonade....or buy Tang and mix the powder in water to make a drink. It will be more calories....but it can help you get more water intake. Also certain foods such a excessive dairy/cheese and chocolate, nuts, shellfish can trigger headaches as well.
oh yes this is very good idea :)..i dont like lemon drink..but i like tang..and love ROOH AFZA too..in ramzan after aftari and befrore sehri i use to drink alot ROOH Afza :)
ajj ke is headache ke bad to Insha ALLAH i will be very care full