hi, thank you for your query. Ecstasy induces serotonin, dopamine, and norepinephrine release, and can act directly on a number of receptors.after the drug weans off there is decrease in the serotonin levels in the body.Ninety-five percent of the body’s serotonin is located in the gastrointestinal tract. If levels of this important neurotransmitter are off balance, bowels problems such as diarrhoea are experienced. other side effects include- anxiety and paranoia Depression Irritability Fatigue dizziness, lightheadedness, or vertigo Loss of appetite Trouble sleeping Muscle and joint aches and pains stomach spasms these symptoms will be there till the drug comes out of your system which takes few hours to a day. i would advise you to drink lots of fluids and take rest.dont eat anything that will irritate your stomach. thank you , wishing you good health