8.) National Toothache Day.
This “special day” on February 9 is, well, maybe not so special (and if you think this holiday is not somehow connected to Sweetest Day, think again!). As the folks at the National Day Calendar put it, “Also known as odontalgia, a toothache is pain generating from a tooth or multiple teeth” (thanks) and “A toothache can make us miserable … It’s safe to say toothaches are never pleasant and not really something to celebrate.”