Yes, find something to help you soothe... some hold ice, but that can be impractical at work. For me, at work I have this clay stuff that you make dolls out of on my desk (sculpy). I find smooshing it helps a lot especially if I've made something out of it - of course then I might be sad I ruined it, but better that than something else... also ripping large amounts of paper, and throwing it away.

Also, in a less destructive vein, having a soft furry thing to hold helps me too... LOL. Like a bit of faux fur/fake rabbit foot. Someone here mentioned using a nice smelling lotion which I am going to try also. Have to find the right smell.

Anyway, I know how you feel... I am usually like middle of the pack/mediocre at my job, even though I am usually much more capable than some of my peers. I am an underachiever. Sometimes when I get kudos my first response to it is Why?!? Its not good enough.... often I will say something self deprecating/joke to cope with the anxiety of the moment. This is something I am trying to stop doing though and accept my kudos with grace even if I don't feel it.

If you can, next time plan ahead of what you might say should you get a compliment. You will be surprised how having a statement ready will help with the immediate fear. And remember, work ethic is something to be proud of. If others shirk those duties as being menial, well and good for them at their other tasks, but you have a greater sense of responsibility, so take that at face value.