I am an 18 year old student who attends high school everyday. I eat very healthy (except for lunch at school), and exercize every day or two. I have always been pretty positive , however a couple months ago I formed a bad habit of worrying about small things that I should not worry about.
Throughout the day i'll notice that I have a minor amount of pressure in my head, especially when engaging in conversation. I can still act normal, and keep a conversation going, however the pressure is more severe (especially forehead), when in a conversation. When walking down the hallway I also feel this pressure, it is not as bad though. Sometimes the pressure if very mild, and other days it seems its a bit more strong, and when I notice that it is strong for a period of times ( an hour or two) then I will start to get a mild headache.
Seriously, go see a neurologist and get a professional opinion. It may not be anything but it would be better to know. It could be something like a specific type of migraine. If you are having any other symptoms write them down so that your Doctor will have plenty to go by.
Go see a neurologist like the other guy mentioned... If all checks out, start drinking chamomile tea, or any other HERBAL TEA!!! Dont drink green tea as that has caffeine that can make headaches worse..
If all that doesnt work, switch to an "Alkaline Diet" It is just about the cure for everything.. Google it and research it...