YOU SAID:
drinking too much makes you be not dehydrated
INTO JAPANESE
飲みすぎると脱水症状にならない
BACK INTO ENGLISH
If you drink too much, you will not get dehydrated
INTO JAPANESE
飲み過ぎると脱水にならない
BACK INTO ENGLISH
If you drink too much, you will not get dehydrated
That didn't even make that much sense in English.