Bulimia Nervosa (also see Weight Control) - If you binge and then 'purge' after eating, by vomiting, use of laxatives or excessive exercise then its possible you are bulimic. Sometimes this eating and purging will be a simple habit, which can be broken through hypnosis, with some people it may be be prompted by deeper psychological motivations. By combining therapeutic techniques to tackle psychological causes and breaking or changing old behaviours, satisfying changes can be made. Typically this takes four to five sessions, and it is strongly recommended that you consult with your GP before coming for hypnosis.