Hello, first of all sorry for my english because it is not my first language. Please keep negative opinions. The story I want to share with you is about my 3 weeks holidays in ibiza. So me and my friend went to ibiza for 3 weeks, we were drinking lots of alcohol (usually jäger bombs with big amounts of energy drink). One night we met a guy who was selling mdma and we decided to try it, after trying it I felt like in euphoria. But that night I woke up all in sweat and my heart was beating really fast. My muscle were tingling I couldnt move my hands, I was hearing some kind of voices which really scared me. I found out that I had a panic attack for the first time. The day after I felt fine again so we just dismissed it and continued drinking alcohol and partying. But the day I had a flight I was feeling anxious again. And during the flight I was heavy breathing and my heart was pounding. Next day I went to see the doctor, he said it is because of dehydration and energy drinks, he prescribed me propranolol which didnt help me. i went to see cardiologist, she said that everything is fine with my heart and it might be just the deficit of magnesium and potassium. But 1 month after that I am still feeling that my nerves are always tense, I feel tightness in my jaw, I cant sleep,I feel tingling in my right foot, I have to take xanax before the bed to fall asleep. Sometimes I feel chest pain. Thank you for your answer and help.