"And one more thing, i find myself that i'm not drinking that much water, reguadless if its distilled or spring...and i do drink when thirsty but still find it not enough...should i force myself to drink more?"
Hi there Soy,
An un-thirsty body is trying to tell us not to drink and it is thus not advisable to force water into such a vessel. Drinking only to satisfy thirst is the path most wise.