Sounds like definite migraine symptoms. It could have been worse, after the vision effects described here, I usually end up with no vision of anything to the left hand side for 15 or 20 minutes (unless something moves, then I can sort of 'see' it) It can also be accompanied by numbness in my fingertips, loss of power in one arm, then a rather incredible pain that crawls from the back of the neck right up over my scalp until it reaches my forehead. Oh, and sensitivity to light (but not noise for some reason)

I have some good medication now, sumitriptan. I take one when the visual effect starts, along with a couple of aspirin or paracodol and that can sometimes scare off the worst of the effects.

Occasionally I suffer from a sort of mild dysphasia as well, and find it can affect me so that I think one word but say another, or sometimes just plain can't remember the names of people who I have known for years.

I did go to see a doctor when that happened, because it sounded exactly like a stroke, and I had had four distinct migraine attacks in one day. He told me it was classic migraine and prescribed the sumitriptan.

I have been through phases of multiple attacks, one or two a week at times, up to that maximum of four in a day. Haven't had one in about 18 months (touch wood!)

I wouldn't wish them on my worst enemy...