Ramzan last for a month every year.You are not supposed to have even water during the 'Roza' time.Is that the only way to show allah that you are his true follower?Can't there be a substitute?
Jains were having Paryushan till yesterday.Doing 8 fasts continuously without water is a normal thing for them.But what about the after effects?Let's think about it rationally.Your work is affected during the day you fast because you are not that efficient as you will be on another normal day.
What i believe is God shall be remembered from heart.He don't want his followers to suffer because of him.Though fasting has laid it's root hard within our society.It's tough to make people believe that fasting is not necessary.Fasting has it's scientific advantages as well , no doubt in that but you should know your body's limits and shall not cross that limit.
What actually made me right this is 'consequences faced by my mother' due to a fast which she did yesterday.It was hot and humid yesterday and so unconducive weather it was for fasters.Water was essential requirement yesterday but then she didn't had water.Her Blood pressure went down due to lack of salt (as a result of no water),she was having constant vertigo and nausea and 2 vomits as well.A minor consequence this was.But this can magnify and especially when you are growing old day by day.So it was just a piece of advice from my side.Rest upto you.
Was just a thought and you have full right to agree or disagree :)
Regards