About 2 weeks ago I was doing what I normally do and feeling a lot more alive than I do now. I use to smoke cigerettes and drink beer but it was on one night when I was smoking and drinking that I started feeling weak, having shortness of breath, heart beating fast and hard with the sensation to grab my right breast particularly under my arm. I thought it was nothing at first but the second night the same thing happened. Then that's when it all started days after. My heart started feeling different and would pump hard but when I stood up it would pump fast and hard. And i felt as if i didn't have no energy. So I gave up smoking and drinking since but i still dont feel like my old self. And ever since i stopped smoking i was having shortness of breath throughout the day if i got up to stand and move around. but since then it has subsided, but i still dont feel like my old self. My energy seems to be ok today but everyday since the first experience it was something new. I eventually went to the hospital and my initial thought was to get an ekg and blood work done to check my heart and to see if my iron was low but all test came back ok. But why do i still feel like crap? It made me think i was poisoned. Which isn't something i addressed to the doctors at the time because i thought it was so many other things going on (Tachycardia,Bradycardia,Heart aTtack, cancer,low iron(nemic)) I'm thankful to have what health i do have and be able to sit and function on the computer but i have to go back to work next week in a fast-paced environment and idk if my new self will be able to handle it. I'm scared to talk to much or i'll run out of breath. You gotta understand I was perfectly fine and it was only but two weeks ago did all of these changes happen to me. How did i go from perfect health to feeling like im dangling between life and death?