What's the difference between the chills and just being cold ? because idk which one i'm feeling.

Fever: "Chills" refers to shivering in an adequately warm environment. This occurs when the body is developing a fever and trying to raise its temperature rapidly. Feeling cold is the skin temperature feeling uncomfortably cold due to a colder than comfortable environment. This also could be a mild fever, but is less likely to indicate fever. Check temperature to differentiate.