KEYBOARD STUCK IN CAPS AND MOUSE HIGHLIGHTS EVERYTHING - FIX

Omgosh, so yesterday I was trying to be productive and I sat down at my desk after my day job and started typing away and trying to edit some pictures. 

I can't even tell you what I was typing about because I was feeling the groove of accomplishment for about 7 minutes and then my "y" key got stuck and started spamming my screen and I couldn't get it to stop...so I was complaining to my husband about it..

It finally stopped...I was like "ok..whatever..." and got back to typing...well I don't even know what combination of things needed to happen, but it did and suddenly everything was backwards and I was typing in the upside down! My letters were all in CAPS even though the CAPSLOCK button was OFF!!!!...AND THEN....my mouse was highlighting and selecting everything with a single click instead of just clicking what I want! AND every link I clicked on was opening a new browser window...AND THEN I couldn't scroll!!! I was about to scream and lose my mind...