What does it mean if I'm extremely cold?

does that mean my body temperature is too low? or maybe its just a fever? i would use a thermometer but i cant find one right now. i woke up this morning normal but then about 2 hours later i started to feel excessively cold and i have a big sweatshirt && sweatpants on. but im not really shivering - just feeling very cold and i cant walk that fast. would tylenol or nyquil or something like that help me? please answer seriously!!