^ aside, how do you know that the mollies he took contained a total of 500mg of anything? how do you know - given that it's an "unidentified drug" - what the normal dose is?
ali rasul80, folley makes the most important point - you took 5 capsules (i assume?) containing an unknown drug. at this stage, nobody can even tell you what you took, let alone what the result of that might be. you should test you test your stuff in future and exercise a little restraint. if you continue to feel adverse affects and you are concerned, seek medical attention.
alasdair