Picasso

Strange things happen in a row. A week ago when I was watching TV, something was wrong with my vision. First I felt a bit hard to see things around me. Then a face I was watching on TV started to blurr in a strange way. His mouth looked sticking to where his nose should be. It was not still. It was kind of flickering. It spread all over his face and I felt as if I was looking at a painting of Picasso. First I thought either of my eye went crazy, so I shut my left eye so that I could see with my right eye and then changed the eyes. Visions were the same with both eyes. So I decided that somewhere in my brain was responsible. In the meantime, the staggered vision moved toward my left while the center of my vision gradually got normal. Then the normal vision spread toward periphery and everything got back fine again.
Come to think, I had this symptom once long time, maybe more than 10 years ago. That time too, it just was gone in a matter of ten minutes.
I investigated this symptom on the Net. I found that a similar symptom was reported by patients of migraine before the headache. It has something to do with brain blood vessels. The article also said "in the case the staggered vision does not accompany migraine, go to the doctor." I do not have migraine