I have that stressed out at myself feeling. Not mad at myself, stressed out at myself. There's something I should have done lurking around every corner, and all I can do is expect it. It's that time of year in academia when students cry, faculty fizzle, and paperwork and chaos reign supreme. For staff it's like watching a roller coaster ride knowing there's a barfer in the front seat.
Some of this is a result of too many things to do in my particular role. Some of it is that it's "normal" to feel that way this time of year as the curtains of academic and fiscal year crash closed (shoot whoever came up with that schedule please). Quite often my "something I should have done" is really someone else's last minute remembrance of something that needs to get done. Pronto. And those kinds of things generally fall within my job of "other duties as assigned". I should have business cards with that as my title... not a good investment since I've discovered that the best use for business cards is making lists on the backs. Nice, small, manageable, pocketable lists.
Anyway, I feel jangly and incompetent. No matter how much I catch up, there's a new confusion waiting to pounce... and it makes me feel like I'm not doing my job. I'm paranoid that it makes me look to others like I'm not doing my job. And then I get stressed out at myself... which leads to a growly stressed out stomach... which you probably shouldn't feed ice cream to, even though you are really craving something creamy, sugary and comforting.