I am 25 years old and I have atrial fibrillation.  My doctor told me that as of now its very mild and I do not need to take any medication unless i experience symptoms from it.  I am going to a music festival this weekend and am thinking about trying ecstasy. I know most doctors will just say not to take drugs period but I'm just curious as to how dangerous it would be for me considering my preexisting condition.

Summarized question: How to treat atrial fibrillation?