In terms of oz.I was looking at these:
There can be lots of explanations for headaches it is vital that you go to a doctor soon to be evaluated. There are to many reasons that you could be having a headache to list them here. You need a complete exam and possibly some lab work or even an MRI of your brain. Any time I see a patient with a new onset of severe HA, they get an MRI of the brain PERIOD!~ Good luck and please get checked. This may be a simple tension headache, migraine or sinuses, but it could be something worse..
Alarm Clock Pro (if there is a free version try it first) It has 1 2 and 3