"A constant headache that lasted a few years and then promptly ended when I stopped meditating." Might have something to do with unconscious straining of the e

"A constant headache that lasted a few years and then promptly ended when I stopped meditating." Might have something to do with unconscious straining of the eyes. Diagnosis based on hearsay - my friend had this problem and it vanished after he switched from a closed-eyed to open-eyed technique.