I am experiencing headache (quality: dull or aching sensation, sensation of pressure or fullness) (side: front) (time frame: gradual onset) (worsened by: bending forward) (occurred: > 3 hours) (severity: severe) painful around eyes worsens laying?

? sinusitis. you need to see your doctor to start with, you may need imaging of your sinuses / referral to an ENT or an ophthalmologist , best wishes.
Doctor can examine. 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.