Hello My boyfriend also has the same problem. He is 16 years old also! It seems you and him have the same problem, he gets so bad he also has to go get a shot and is usually upset to his stomach due to the headaches! although I do not have any answers I was hoping that If you find any leads you can keep me informed! Thank you and take care! I used to get headaches alot try logging down everthing you eat and log when the headach occurs, Lots of times it's the food you eat!