Male, 70 yrs. old was fine in the morning. Helped me in the kitchen , we held a good conversation. He went out and shoveled snow and cleaned of the deck. Came in and started watching TV, got sleepy and laid down and feel asleep. When he got up, he can t make a full sentence. All he says is yep nope oh, well, things like that. This happened suddenly. What should I do?