am i dehydrating?

[skinnyfromtoptobottom]

hi.
everytime i wake up in the morning, my throat is extremely dry. does that mean that i'm dehydrating? i'm not drinking much water, because when i'm trying to eat as much as i can, there's just no more place for water, i'm just full all the time..
what am i supposed to do?

 

[skinnyfromtoptobottom]

oh and btw, yesterday i started to take creatine again, so would it be better to eat less and drink more?