Coffee and Caffeine FAQ

It could be:
you just aren't drinking enough water. I have to use a straw bottle to get enough- i hate the squirt/sports bottles and hate sipping from a glass. I need WAY more water than just about anyone I know. My brother in law also noted that when his ears hurt he drinks water until he feels them "pop".

Caffeine works by dilating your blood vessels, therefore it's often prescribed for headaches and used in sinus meds. You may actually be allergic to a number of things, but because you've been on caffeine for so long you never "noticed" because the caffeine was keeping your sinuses (which are full of blood vessels) open. I would look for the regular allergens- pets, dust, dairy, citrus, eggs, wheat before you go digging too deep. It may be as simple as airing your house out daily, vaccuuming more often. Do not overlook the need for clean pillowcases- it's what you stick your face into for eight hours a day!

Are you exercising regularly? that usually opens everything right up for you for a while, which may reduce symptoms.