Roger is in a transitional phase; he will bounce back eventually.
I'm at work right now. It was a very lousy weekend. After being around +18-20 C all last week, on Friday the temperatures dropped suddenly and Saturday and Sunday were only 5 degrees. Today, too.
They shut off the heating in my building, luckily I have a plug-in heater, but I spent a lot of the weekend under a blanket.