What My Father Thinks of Me

Every time I visit my parents, the first time my father sees me making coffee he says: 'You started drinking coffee again?'
I have never stopped drinking coffee.
Yesterday he asked me if I still took a four hour nap every night - from about eight to midnight, he said - and then wrote until morning. He said it like it was something I'd been doing for years. I had no idea what he was talking about.