Hey, I'm a teenage girl, and at school today, at around 2pm, I got a bit of backache. I thought nothing of it as it wasn't extreme, and carried on until I got home at 4pm. I then started to get small chest pains, and thought nothing of that, too, as I assumed it was some sort of growing pains. After my tea at 5pm, I did some running on my treadmill as I haven't been doing much exercise recently, and afterwards I realised my chest pains had got worse. I laid down on the sofa and breathed deeply, finding the pain worsened when I did so. I then started to freak out and searched online for possible causes. I found lots of links about heart attacks and all kinds of things relating to lung conditions and problems in the arteries. The pain spread to the back of my neck as well and I really started to worry. I had another rest but couldn't seem to make the pain go away. I had a 5 minute panic attack - which I'm prone to - and began to question whether or not my symptoms are related to anxiety or a heart problem. It's about 8:10pm now and I still have back, chest and neck pains. I'm not sure what these could be related to and I'm extremely worried. Thank you.