My left & right click won't work

Something happened last night and my left and right click stopped working. The mouse works fine outside of the game, and even functions correctly in the passive skill tree and settings menu. I can't click to move, or fire my weapon for some reason. I tried restoring all my defaults but it didn't help. I'm genuinely confused what I did or what happened. Please help.

I should note this is only a problem for my mercenary, my shaman doesn't have this issue...

I should note this is only a problem for my mercenary, my shaman doesn't have this issue...

Thank you, that plus a couple other things worked. I love you :) haha. You win.