120 mg of MDMA might be too much. High dosages of this substance provoke side-effects like grinding jaws, fluttering eyelids and nerves, or even attacks of sudden cramps. Also, an overdose will make the body temperature rise and it might provoke hallucinations. Common hangover symptoms, which will occur during the days after MDMA consumption, include touchiness, depression, lack of concentration, insomnia and lack of appetite. A frequent consumption of MDMA increases the risk of irreversible brain damage.