When I have a migraine on the way, I lose the ability to string a sentence, and all I can reliably say is "Listen" and "fuckfuckfuck"
Which I did to my lovely but understandably nonplussed friend over the phone this morning.
Sometimes I go temporarily blind - I can 'see' but can make no sense of what I see.
None of these things last for long, but it's so weird when it does happen!