could it be a bad water pump?
i have a 01 chevy cavalier and recently replaced the thermostat cause it started running 2 marks above 195... it ran fine all week without overheating. tonight, it ran warm and the low fluid light came on and when the car cooled off, i took the cap off the jug, and it was empty. so i filled it back up and drove it home... if the pump is bad wil the jug be empty?