most likely you are feeling the letdown after all the buzz of activity for Christmas.
take some time to refresh yourself, smile and look at your 'to do' list and find something to get you excited again.
I'm sorta feeling the same way but desperately need to reorganize/clean my sewing area. That is what I am doing today and finding things that I want to get started on BUT I am putting it off until my area is newly clean and reorganized.
warm quilt hugs, sue in CA