Check your body temperature with a thermometer
A fever is usually 100.4°F (38°C) or higher
You may feel unusually warm to the touch
You may have chills or shivering
You may have sweating
You may have headache
You may have muscle aches
You may feel weak or tired
You may have loss of appetite
You may have flushed skin
You may have a fast heartbeat
You may have dehydration or dry mouth
You may feel dizzy or lightheaded