Everyday i feel like i'm going to die soon, it is so bad that the thoughts prevents me from going out with friends and family. i also shake my legs very often it helps me feel better and sometimes i get lightheaded too i'm really scared help please?

Please follow up with your Pediatrician. Anxiety is one possible cause. Avoid stress, exercise and eat a healthy diet. A BP check and lab based testing may be indicated.

Would advise addressing your emotional responses ASAP, as all of this can be turned around. Immediately contact your doctor, and get a referral to a psychologist or psychiatrist. Do compulsively, go on walks in the sunshine for 20-30 minutes every other day. Get proactive and address your issues, as help will change this.