Stacy's Little Helper

I'm sick. Very sick. I feel asleep on the couch last night at 6pm. I woke up around 9pm and Gary was sitting on the back of the couch. I went to bed, Gary came with me. He slept on the opposite side. Every time I woke up during the night, Gary was there. I woke up this morning, he followed me to the bathroom. I did my business, he did his business. I sat at the kitchen table sipping my coffee this morning. He sat on the floor by his food nibbling away, drinking his water. Then he sat there all poised & pretty staring at me. He did his little wink that he gives me when he's looking at me. I winked back. Gary winked again and waited until I was done with the coffee. He started following me again & I told him, "Go do your cat stuff, I'm all right." Gary is now looking out the bedroom window, doing his cat thing. I am in the living room typing away on the laptop. Is it possible that this cat knows I'm sick & am not feeling good? How does he know?