It is completely untrue that any E pill contain heroin..That is only a rumor. As for feeling slowed down by your roll, it could very well be the pills..as you know, pills can vary tremendously. if a pill has too much MDMA, you will feel dopey..if it has two much speed you will feel too wired. to a certain degree, it depends upon your chemical makeup and what is the good combination for you...I would suggest that when you get some pills that give you a great roll..try to get a few of them and "stock up" For example 3 months ago, I got some yellow motorollas, I could have bought more but I didnt..they were great..since then, I have had a few different pills that everyone said were awesome but I didnt feel it..I should have gone back and bought more motorollas when I had the chance and when they were available.