What is going on? Winter and these holidays.
The combination makes a lot of people crazy, including me.
While I would never shoot anybody who was not a threat, I deal with the rest of it by becoming a hermit from November to May.
Get a light box--some people are much more susceptible to the short days and long nights than others. They are used a lot in Canada and Alaska, and in Russia. Cheap--you let the iight shine on you from an angle, the idea is that it should get into your eyes (peripherally) about a half hour a day. It goes to a primitive part of the brain.
A lot of the way you may feel has to do with our programming to go into a kind of hybernation. Think how grumpy a bear is in winter...