Keyboard is fked -_-" help

Whenever I open MS, my "B" and "C" button won't stop clicking. It's like both buttons are stuck or something. The thing is, whenever i'm out of MS, it doesnt happen and I can type normally. Even when I'm chatting to someone IN MS, it doesn't happen. It only happens when I'm standing, it will push whatever button I have on B and C (like if I have jump on C, i won't stop jumping), and it happens on the log in/pass screen. It's becoming a pain in the ass to type in my login/pass without seeing bcbcbcbcbcbcbc.

I think it might have something to do with my volume controls since when I push my -volume button It presses C, and when i push my +volume button it presses B.