I've been having constant dry eye, I wear prescription glasses and have headaches pretty much everyday. Could they be linked? I'm not sure why I have dry eye.

A few suggestions. Has your 'dry eye' been confirmed by an ophthalmologist. This can be treated with plain ointment at night and drops during the day (do not use drops that say gets the red out). Give this a week or so to see if there is improvement. Headaches probably come from a different origin. Dry eye at your age is uncommon but can be associated with arthritis. Get evaluation if not improved.