What do I do about my terrible headaches?

It has been over three weeks now that I have been experiencing very painful headaches. So painful that they are debilitating. They seem to be worse when I am up and about. All I want to do is sleep because it is the little relief I receive. I have been to many doctors and a neurologist. He diagnosed me with migraines. I am not sure thats what I have though because I don't experience many of the symptoms. I am sixteen so he said that migraines in my age group can be atypical. He gave me topamax as a preventative and midrin for pain. The midrin does not work at all, but because of my age no one will prescribe me anything stronger. I am just lying here suffering and no one seems to understand. Any enlightenment on the situation?