I'm 16 years old. Okay. So about 3 or 4 weeks ago on a Sunday I decided to smoke a blunt by myself. (the weed was not laced and it was not spice) I don't do any other drug and I've never done anything outside of marijuana. So I smoked then a few minutes later my high came in strong and I don't know if it was me having bad thoughts or something but my heart started racing and pounding and I could feel it. And I got up and started walking around scared for my life thinking my heart was going to bust (I don't have a history of heart conditions) and I kept feeling my chest thinking I was going to throw up my heart or something. But I ended up laying down and going to sleep. After that day everything went downhill I kept having this worrying feeling and I've heard about anxiety but I never knew what it actually ment. So at school I just felt so fatigued and depressed and I kept thinking "is my heart going to stop" "am I going to die" so I came home from school Tuesday of the same week and my mom was cooking and I was sitting down still thinking about my heart (btw I told her about what happened) and my throat felt like it was closing in and I got really nervous and it scared the hell out of me so I told her to rush me to the ER. My mom must've knew nothing was wrong with me so she took me to this urgent clinic down the street and then they checked my heart rate and my blood pressure and they said it was normal. They already called the paramedics and the firemen came in and asked me questions and they told me I have a lot of anxiety and I need to calm down. Then I went to the ER they gave me a EKG and I guess nothing was wrong because the doctor really didn't seem worried and he put us in a room and we sat there for about an hour and my mom just said let's leave and we passed the doctor and he said it was okay. So after that day I've lost weight and got skinnier and the bottom of my lower left abs are bigger then the right then I kept having anxiety and panic attacks every night before I went to sleep. So weeks pass and I start feeling weird feelings around my body like I could feel my blood shooting. It was painless and lasted for 1-2 seconds. And I keep searching the web for symptoms of cardiac arrest , heart disease, cancer etc because no matter what I do I can't get my mind off of it. And the left side of my chest is slightly bigger then the right and it's like I have a bump inbetween my chest. Today I had a quick panic attack and I felt like my heart busted. It felt so real but it was painless I felt like I felt the blood rushing for like 4 seconds or so. I just wanna know if this is only anxiety and my mind is playing tricks on my body. Because no one in my family had a history of any heart problems and the only cancer problem was lung cancer but at an old age because most people in my family smoke cigarettes. I promised I would stay away from those period.