hello, I am a 21 year old male. I was out with my friends at the weekend and I consumed alot of alcohol and the drug methadrone, a few days on and my heart is still beating faster than normal I can feel it beating somethimes without puttin my hand to my chest, I am also finding it hard to sleep at night, my chest feels a bit heavy too as if thier's a weight on it .I havn't eaten much in the last few days is that a factor, I smoke if that helps you in any way. Should I go to a doctor straight away or will my heart go back to normal soon or maybe I just took to much of that crap,never again