Smoking or drinking strongly dampens the effects of MDMA. Pills also often contain all sorts of random crap, so unless you had crystals I'd give it another shot. Also double check your dosage for your specific weight. Heavy people need more MDMA, something that you don't have to consider with most drugs whatsoever.
It was the purest crystalline 'shit' imaginable. Crusties always have the good stuff, very most especially at Glasto. Everyone else went fucking batty on it.
I am rather substantial but necked enough to get a blue whale amorous.