Keeping secrets

Ever have trouble keeping your mouth shut when you're told something and aren't allowed to pass the information on?
Well I'm in that boat at the moment and it's not a frivolous piece of information I am sitting on either, so there would be ramifications if I let slip. Not earth shattering ones, I admit, but possibly personal ones. Hopefully it is only for a few more days, maximum, but since it involves a non-social topic it is even harder not to talk about it.
Best option may be to not think about it too much....