What is the likely cause?

The cause ofCVSis currently unknown, but there may be a link with migraines . Many people withCVSdevelop migraines,and migraine medicines have been shown to help treat the syndrome.

Vomiting episodes can sometimes be brought on by a trigger such as:

  • emotional stress , excitement,anxiety or panic attacks
  • an infection (such as asinus infection or theflu)
  • certain foods such as chocolate, cheese, cured meats and foods containing MSG
  • caffeine
  • hot weather
  • menstrual periods
  • motion sickness
  • unhealthyeating habits overeating, going without food for too long, or eating just before bedtime
  • physical exhaustion or too much exercise
  • sleep deprivation
Content supplied by the NHS Website

Medically Reviewed by a doctor on 21 Dec 2018