Is it normal for me to have a headache almost every day being on my vyvanse (lisdexamfetamine). i take it daily before school and at the end of a day my headache starts?

No: Daily headaches are not normal - while it could be a side effect, it is also possible to be unrelated to your medication. Eye prescriptions might be a cause, sinus, allergy, tension, etc., etc. OTC relief taken as directed may help but to get to the possible cause - see your appropriate doctor for an exam. Chronic pain can become habit forming and it's a bad habit for a teen to start. Best!