Thanks guys. You're right, and I listen to my body like any experienced lifter should. I thought I was doing that today.

I felt motivated and strong. I had absolutely no ride to the gym so I took the bus and I was just thinking about repping out 315. Imagining it to feel like a feather. I felt like I had it. I believed I was going to exceed myself. I lifted the weight from the rack and people stopped to watch. I told myself not to fail them, not to fail myself and I sunk down and got 1 hard rep, following it with another one which I wasn't able to bring back up.
I was embarrassed and ashamed. I tried again and I felt pathetic when some guy came up to spot me. Of course I had to assure him that I was having a shitty day.
My best squat was 335 for 7 (may be a "beastly" weight for some of you guys but I'm proud of it). Today I got 315 for 2. HIT cost me a lot of squat strength so I'm trying to build it back up, furiously!
Tommorow I'm going to torture my quads.
Thanks again. You guys serve as more motivation. And I won't fail you either. Tomorrow I'm going to laugh at today.