Nausea and Vomiting
Another common sign of heat exhaustion is nausea or vomiting. It is caused by dehydration when the body loses too much water from excessive sweating. People with heat exhaustion would feel sick to the stomach and throw up. This symptom makes it more difficult for these individuals to drink sufficient water to replenish the lost amount, which worsens the condition. Whenever you notice vomiting with other signs of heat exhaustion, such as severe fatigue, dizziness, or headache, make sure to get medical support as soon as possible. [2]
