I've noticed that a friend of mine has difficulty finding the right word quite often. We were away with friends this weekend and it seemed like he was saying "what's the word?" quite often, usually not complex words
He's 58, has a responsible professional job on a contract basis, which has just been renewed,so I'd guess that must be going OK. He's still the person we all look to when we need directions or help with something technical.
I've thought for a while he doesn't look that well and over the weekend he did a bad thing that's completely out of character, based on what I've known of him for the last 10 years or so, then there's the language thing.
How concerned should we be?