I had chest pain and difficulty breathing after taking ecstasy. i also was smoking weed during the week and after taking the pills. what caused this?

Why to say "No!": Your dealer does not sell FDA approved drugs. Who knows what garbage and potential poisons are in this junk.? Maybe the pot was grown with a bunch of pesticides or your pills had toxins added. There is a reason that these drugs are illegal! Stop drug abuse. If you can't, or you don't care if they kill you, get treatment. You are a better person sober & will have a safer, often happier, life.