I've heard about a number of people experiencing feelings of depersonalization/derealization after taking ecstasy or weed. it's happened to me after smoking a lot of weed in the past, but it hasn't happened to me from taking e. does anyone know if MDA, not MDMA, can cause these feelings? I know it's supposed to be headier than MDMA, so I'm wondering if it has the potential to make you feel "out of it" for days afterwards...