I am experiencing headache (side: back, front) (quality: dull or aching sensation, sensation of pressure or fullness) (time frame: gradual onset) (severity: moderate) (occurred: > 3 hours) (better by: nsaids (ibuprofen, naproxen, etc.)), lightheaded and

Many possibilities. Most people get a headache at some time, such as from colds, infections, lack of sleep, too much driving, long hours on the computer, stress at work, etc... Over-the-counter treatments include Tylenol (acetaminophen), Motrin, Alleve, Excedrin Migraine, and their generic brands. A bad or increasing headache, recurrent headache, weird headache, or one with other worrisome symptoms should be checked.