During a heart attack, your body is in a state of emergency. Some of the nerves that control the functions of your body (such as your temperature) can go into overdrive. You may sweat or look very pale.

Your nervous system may also play a part in making you vomit or feel nauseated during a heart attack. We don't know the exact reason why you may get these symptoms.

This information is for educational use only, and is not a substitute for prompt professional medical advice. Readers should always consult a physician or other professional for advice and treatment. ©BMJ Publishing Group Limited 2008. All rights reserved.