Great information. Once I had a situation where I was at work and a customer was asking a question. I knew I had heard the words they were speaking before but I couldn't understand what they were saying. Then I tried to talk to them and I was slurring my speech and not even saying real words. It was awful. Later I saw a doctor to see if I had a stroke. They said that if I did there was no known damage. Guess I got lucky.