I experienced this as well, a few years back. I'd been feeling fuzzy all day at work - losing track of what I was doing, constantly searching for common words.

I experienced this as well, a few years back. I'd been feeling fuzzy all day at work - losing track of what I was doing, constantly searching for common words. Eventually I decided to head home. I got to the train station and started feeling a rising sense of worry, especially once I noticed that my left arm had stopped obeying any commands, so I texted my partner. Texting was hard. The words were in my brain but my thumb wouldn't obey me. Eventually I got there. I noticed a few typos, but I couldn't find it in me to correct them and I reckoned it was understandable enough, so I sent it; partner later reported back that the text was completely unintelligible. He called me, and I couldn't get any words out except the word 'help'. He looked up my location on Maps, called an ambulance, and told me to find a seat. By the time it came, the episode was mostly over and I was back to just feeling very fuzzy and having trouble speaking clearly. They took me to hospital, booked me in for a CT and MRI, kept me in for a couple of days of observation. The doctor later told me that what I'd had was an atypical migraine, rather than a stroke. I'd never had a migraine in my life, and (other than a regular pain-migraine which kicked in the day I came home from hospital) I've never had one again. Brains are really, really weird.