Occasionally my eyes will hurt too but then they both hurt. Just the one is kind of strange. I attribute them to being part of migraines like an above poster mentioned.
I could be wrong of course, but I doubt it's
that important to go see a doctor right away. I get wierd little health problems every other month or so and they've never been anything that required going to a doc.
But that's just my experience, I'm not an adequate sample size to extrapolate from
Edit: Here is a good sight for symptoms:
http://www.allaboutvision.com/condit...e-problems.htm
Try looking under "pain", or maybe under "bulging" eye if it feels swollen, or "swelling".
Here are two that look plausible: orbital pseudotumor -- An inflammatory mass in the tissues around or behind the eye that looks like and mimics the symptoms of a tumor. The cause is unknown. The primary symptom is a painful, bulging eye. You may also experience pain or discomfort around the eye.
and
sinusitis -- Inflammation of the sinuses, due to an infection or an allergic reaction. Probably the most common cause of pain in and around the eye. Symptoms include head pain (headache, pain around the eyes, toothache, jaw pain), nasal discharge, postnasal drip, coughing, eyelid swelling, swelling around the eyes, a stuffy nose, fatigue, bad breath and a sore throat. See also: mucormycosis.
assuming you havn't had any recent trauma to the head area.
If you're losing peripherial vision you might have glaucoma but that's unlikely for your age.