So this randomly started happening today that my Trackpad doesn't respond to clicks. It does sometimes if I mash it, but mostly it doesn't. The weird thing about this is that my tapping and swiping is working perfectly fine. I've never realized how much I click and drag things before now. My Macbook Pro is getting old and is from 2009, if that matters. inb4: I've checked my System Preferences (which are normal) and have restarted my Mac.