It's possible your pills were contaminated, lots of them are. High quality MDMA always left me feeling nothing but divine. With mushrooms it is just fucking amazing. You eat the mushrooms first and wait about half an hour before taking the ecstasy. This way the shrooms manifest first but it wont be long before the MDMA comes along and both peak in unison.

For the record you're combining a natural chemical with a synthetic chemical derived from a natural chemical. As if it really matters.