I ve recently become concerned about my heart. I m a 21 year old, 5 8, 175 pound woman and consider myself decently healthy. I eat well when I can although I do make poor food choices. I am also not very active as I work at a call centre and sit at a desk all day. I don t drink as much water as I should. I have also been smoking marijuana consistently for 6 years, mostly through a glass bong with at least 1 perculator. Within the last 2 years I have been smoking something called poppers , which is a layer of tobacco from a cigarette with a layer of marijuana smoked through a bong. It creates a strong headrush and intense feelings of relaxation, causing me to want to lay myself down as if it was overwhelming my body like heroin (I have never done heroin but I have seen people react that way to it before) I know it is very bad for me because the carcinogens from smoke is obviously bad, especially cigarette tabacco that s mixed with marijuana and only filtered through water, but I want to know what it s doing to my organs and body functions in the long run. The problem is that I don t think there have been many studies on poppers because it is a relatively new and still underground method of smoking marijuana so its hard to find reliable information. Recently my heart has been occasionally feeling strange. I will be relaxed either sitting or standing and breathing and I will breathe out slowly, then feel my heart almost lump up and beat in my throat, it scares me and I take a deep breath in to counteract it, and for a second I almost feel like its going to stop beating. Then its all good again. What s happening to my organs and why is my heart doing this? Thank you for taking the time to read this and reply!