I have had a very strange experience yesterday morning that lead me to your website. I wonder if I had a migrane aura without the headache.
I was taking a shower after biking to work when I noticed a spot in the upper corner of my left eye. It looked like a "negative" image you get after looking at the sun or a light bulb. I figured that I must have been looking at a light and it will go away in a few seconds. It became intesified and started spreading out to the edges in a zigzag moving pattern. It was like electric neon zigzags moving in a circular pattern. My vision became somewhat tunneled, and I felt a wave of something that I could maybe descibe as "de-personalization". I felt a bit panicked, the images would not go away even with my eyes closed. Is started thinking maybe I have come in contact with some poison or halluciogenic, or perhaps I was having a stroke. I got dressed and as I was heading up the elevator to my office my vision dropped out and it felt like someone drew a visor or curtain over the top part of my left eye. I could see, but it was blocked. It's hard to explain exactly. Part of my vision became rain-like. Looked like water pouring over a windshield, with flickering zig-zags outlining it. I had a feeling of unreality and part of my cheeck and mouth area felt numb. Then suddenly went away.
I told one of my colleauges about it and she said that her mom has something very similar and it's called a migrane aura. Then I started searching for it and found drawings and descriptions of peoples that was very similar to mine. Reading these stories I realize that I always had floaters and occasional visual snow, with sharp pain to my temples. The symtoms were so random that I never thought much about them, in fact I always tought that everyone gets these once in a while.
The experience yesterday was very intense because it felt like I was loosing my vision or going insane. It helpful to read that neither of these two are the case. Any similar experiences?