Answer:Muscle cramps, usually in the legs or stomach (caused by loss of salt from sweating). This may be the first sign of overheating. Heat exhaustion. Heavy sweating, cold and clammy skin, nausea and vomiting.
Explanation:Usually self-diagnosable
A temperature of 104 F (40 C) or higher is life-threatening. Confusion, nausea or vomiting, and rapid breathing are some symptoms.
People may experience:
Whole body: dehydration, fatigue, flushing, thirst, excess sweating, fainting, inability to sweat normally, lightheadedness, low blood pressure, or nervous system dysfunction
Muscular: cramping, stiff muscles, or muscle spasms
Gastrointestinal: nausea or vomiting
Respiratory: fast breathing or shallow breathing
Also common: elevated core body temperature, fast heart rate, delirium, dry skin, headache, or mental confusion
Consult a doctor for medical advice