What are the Symptoms of Heat Exhaustion?The symptoms of heat exhaustion include profuse sweating, muscle cramps, nausea and vomiting. Symptoms of heat exhaustion include the following- Profuse sweating Thirst Muscle cramps NauseaVomiting Rapid heartbeatFainting Dizziness Headache Mild elevation in body temperature Published on Sep 26, 2014Last Updated on Sep 26, 2014