I can see this easily happening for a number of reasons. I can see pretty well, but learned late in life that I needed glasses and was getting a lot of migrain

I can see this easily happening for a number of reasons. I can see pretty well, but learned late in life that I needed glasses and was getting a lot of migraines from the lack of them. And if there's one thing that activates my stress and depression, it's a bad headache. They can be debilitating. I've also heard there's related problems with vision and nausea for example.