Contractions....all night

Last night... from midnight until this morning, I was having contractions.  Kinda odd because I usually have Braxton Hicks contractions periodically during the day, but never have them woke me up in the middle of the night.  The were uncomfortable, but not really painful, but consistant enough to make me lose quite a bit of sleep.  I think I need to drink more water and maybe that will help. (?)