My head always hurst severely and I have beento doctors and no one can figure out why am having these headaches. I can not take ibuprofin or aspirin and tylenol doesn't help what do I ask for?

We probably can't help much either without much background info. Do you drink plenty of water? Are you under a lot of stress? Have you tried a chiropractor? Sometimes it's hard to pinpoint the cause of a constant headache. You might ask for a cat scan if all else fails.

Do you have high blood pressure?

See a neurologist and/or headache specialist. CDH or Constant Daily Headache is a headache type. Generally, though, people have triggers.
A CAT scan/MRI is generally used to rule out tumours and it would be used when sudden/different symptoms appear.

I know it sounds funny, but do you have long, thick hair? It could be as simple a problem solution as cutting your hair.

This may be way off base, but it's a thought!

I'd make sure that you do as KISS suggested, see a specialist.

It could be a matter of diet as well. Best of luck! :)