No, not the temperature, I have a cold. A whopping great one at that. One where you don't use a lot of hankies, but you do sniff a lot. And sneeze occasionally. And all my sinuses are blocked.
All this is not helped a great deal by the weather: wind, rain, cold. And when I choose not to bring my Tweety-suit into work, it serves me right if I get sicker and can't go to Berlin this weekend. Oh, and a Tweety-suit is a rainsuit, designed to keep me dry while cycling home (I don't own a car) and it's bright yellow, hence Tweety.
Another idea perhaps: take the Tweety-suit into work tomorrow, just in case it rains!