@deevon, I feel bad for you because you’re so young and unfortunately this can happen at any age, the symptoms you describe sound a lot like a panic attack and I’m very familiar with that. I see that you have been going through lots of tests to rule out any other possible causes, also I read that you’re taking medication for the symptoms, sometimes the medication is not effective enough and you might have to see the doctor for help with that. It’s very difficult to live with stress and anxiety because the symptoms you feel are so intense affecting your body in many ways, it can take a while to get back on track and eventually with the right treatment you will feel better again, best wishes.