OK so 3 weeks ago me and some friends went clubbing and did some pills... they were branded 'purple teslas' and were suppose to be pretty strong... throughout the duration of the night I stupidly took 2 and a half. When the morning came I hadn't slept and began walking home from my friends suddenly I felt my heart drop and my chest numbed up and had a really tight pain over the left side of my chest and my heart seemed all over the place. Luckily my friend managed to calm me down and got me home safely. These symptoms then continued for a whole week STRAIGHT. When the week passed I started to feel better and the pain subsided but I still felt a little short for breath. THEN 4 days on I woke up and the pain was back. I got really scared and called an ambulance as I thought I was suffering a heart attack. I had 3 ecg's ran, blood tests and a chest x ray which all indicated that NOTHING was wrong with my heart, put the pain was still hurting SO much and I still found my breathing was difficult. It is still happening as we speak and although I feel like I am slowly dying no medical professional can see anything wrong!!! I just need someones input/advice? Has anyone else experienced this and if so will it end soon? PLEASE I could really do with some reassurance here guys?