>Then how do you know one is not the other? I upgraded to a 4k monitor from 1080p in 2005 and suddenly half of my headaches went away. When the season changed

>Then how do you know one is not the other? I upgraded to a 4k monitor from 1080p in 2005 and suddenly half of my headaches went away. When the season changed and the sun started coming into my room, those headaches came back. Blackout curtains stopped them. It was a pretty big ah ha! moment, because before that medicine didn't work on my "migraines" because I was suffering from multiple kinds of chronic pain at once.