you sound like you are describing "visual migraines" and I have them. Actually my neuro has them and he doesnt have MS. My mother has them. its like a brain storm and no one knows why or what happens when they come on. They should last less than 20 mins. Some folks get nausea with them, some get dizzy or cant see thru the muck. Within an hour it should go away. Sometimes they can be followed by a real migraine which is painful, and awful, but most times once it subsides it doesnt lead anywhere.

I have them several times a day now. My neuro said he doesnt know if its an MS thing, a brain storm thing or what but we will keep an eye on it. (no pun intended)

I hope you are feeling better.