Left click no longer working...

Hello!

Today my 2011 MBP decided to be a little stubborn. The left click with the track pad does not work. Right click works fine. Plug in a USB mouse or a Bluetooth mouse, and the problem is still there. No left click; just right.

Did a software and hardware dignostic in the startup (opt-D), and the test comes back normal. I'll also add that the clicking worked while navigating the test, so it isn't a hardware issue.

Some input would be greatly appreciated. And a reminder...I cant do anything that involves clicking. So. yeah.

Thanks!