Our expert says:
Some people have a sensitive vagus nerve and can get dizzy or even faint when laughing, coughing or straining on the toilet. It is usually not dangerous unless you really pass out when this happens. It is important to go to your doctor and exclude any underlying heart disease like an abnormal rythm or a leaking heart valve though. He can do this with an ECG and physical heart examination.
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal
advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.