Have to say I think what Tuba Mirum describes is like 2 'Mini Strokes' I witnessed my mother have some years back - she woke up not knowing who or where she was, couldnt see, was acting like she was drunk - wore off after about 3 hours - I was only concerned the first time as I had that previous week read an AIC about 'Mini Strokes' before that would have been none the wiser