solution to these constant headaches ?

Over the last four years I had constant headaches, usually wake up with one in the morning or sometimes the one developed after I was awake for an hour or more.

It hurts around my eyes and they feel depressed and tense, which is usually aggravated by bright sunlight or bright indoor lights.

The area around the brow I felt tense and nervous, like my temples on both sides, and my forehead felt tense and depressed, too.

It hurts the eyes and forehead to look at the top surface of the head.

I had the eye test that shows my eye pressure and so the views of all fine.

I've been to many doctors over four times the previous year, but with no success whatsoever. I have taken courses amytripyline on three separate occasions (such as doctors thought the cause may be muscle tension in my forehead.)

It made no difference at all to the occurrence or severity of headaches.

I've been taking a course Paramax, again with no effect. I've stopped taking paracetemol for two months to see if taking up so much every day cause headaches to continue, but again no effect, and this would not explain the original cause of the headaches as well.

I've stopped taking the pill for more than six months, again to no effect. I have a headache, the same every day continuously for 4 years before and I really felt at the end of my tether.

I eat a balanced diet, exercise one or two times a week doing aerobics, and I have at least eight hours of sleep most nights.

I get these headaches if I'm stressed (during my exams) or not (relax on the beach outside the country) and always the same severity and feeling depressed.

I have seen two different doctors but they failed to explain or cure this headache and I'm constantly on the edge of my patience.

My blood pressure is fine and the X-ray doctor sent me to take my head also found no indication either the cause or the answer to the headaches.

I'm in my final year at university and I will do almost anything to just feel 'normal' again. It's been so long I can not remember how it felt to not have constant headaches and functioning properly.

Surely there must be something wrong to get a headache so long and so continuously?