This is kind of interesting. You don't appear to have won any bounties (which don't always show up correctly on your "recent activity" page), and you don't seem to have gotten enough downvotes to remove the rep after reaching the cap. You appear to have clicked "Today" correctly, and I independently added up and verified the 179 total.
I'm stumped. (And before everyone bum rushes that answer and tests upvoting it, I already did, and his rep did not increase.)
Best answer, Yacoby, is to take solace in the fact that it is almost tomorrow. As I write this, I believe we are 1.5 hours or so away from the UTC date switching over.