Most people assume sudden warmth, chills, or excessive sweating are simply caused by weather changes or occasional hot flashes. However, your body’s internal temperature control system is a complex process that helps keep vital organs functioning properly around the clock. When body temperature regulation begins to struggle, the signs can appear in surprising ways that many people overlook. Recognizing these symptoms early may help identify underlying health issues before they become more serious. Here are six signs that your body may be having difficulty maintaining a stable temperature.