WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms chills, fatigue, night sweats and shaking chills (rigors) including Tuberculosis, . Night chills alone are most likely nothing to worry about. At night when we are sleeping, our body's metabolism slows down quite a bit. This causes the body to produce less heat than .
What causes night chills? | Zocdoc Answers. May 19, · Chills also commonly occur with a fever, and in this case, your body shivers as a defense mechanism against harmful pathogens. Infectious bacteria and viruses thrive at .