I have Been smoking for about 5 years, 22 years old now and I had a bad experience last week. I felt something in myleft chest area (male) had an panic attack while smoking my morning cigg. Felt like my heart was saying game over. Spended 1 day at hospital, ultra sounded my heart, ekg showed a normal but fast heartrate so they took me to a Bigger hospital by ambulance. Well there they did a scan of my lugns and that one hour waiting period was the worst hour of my life. I promised the lord that i will stop smoking, stopped yesterday.. day two and feeling very anxioys, sweaty and aggresive. But enough is enough!