What Causes Irregular Heartbeat After Taking Drug Containing Ketamine, Methamphetamine And MDA?

Hello doctor, I have a question: last Tuesday I took ecstasy but just yesterday friend of mine told me that it wasn t ecstasy, it was something different which contains caffeine, ketamine, methamphetamine and MDA. Before to take it, I ve been told that it was ecstasy. So, I took 1 of them and I didn t feel anything. After couple weeks I got 2 of them, since I ve been told that if I take 2, it would be better. So last Tuesday I took 2 of them at the same time. After couple hours my heart beat started pounding so badly that I could not breathe properly. I drunk water then I threw up. I felt better but after 10 minutes it started all over again. Later I passed out and wake up in the morning, feeling normal. But later I felt that my heart feeling weird, uncomfortable. And I realized that my heart start pounding little bit when I do lifting stuff or move fast etc. today is Monday. It has been almost a week. I felt my right side of the body feel numb. Sometimes I feel little dizzy and head ache. I am really worried about my health and especially about my heart. I really hope that I did not damage anything. I ve been drinking water, trying to have enough sleep. By the way it makes me super hungry. And I eat a lot. And it was my first time taking that pills. If you could suggest me and tell me what s going on that would be great! Thank you in advance!