Ok, sir. I understand.
I actually forgot to bring up why exactly I felt a bit off today...it had nothing to do with my hips or ankles of hamstrings.
My problem was my shoulders. I slept in a real awkward way last night and for some reason I just could not lock my left elbow when I was squatting. So throughout the 8 sets with 65 lbs I did not "feel" my elbow was locked out and my left shoulder was badly straining.
BUT, after those 8 sets I went and did 2 sets of 15 reps dumbbell presses with 35 lbs and I also did 2 sets of tricep extensions with 10 lbs and I finished with 5 pull-ups (not chin-ups). Throughout the presses and the pull-ups I heard a whole bunch of clicking sounds (like when you crack your knuckles?) in my left shoulder and then after that everything went a bit smooth.
I hate sleeping in these weird positions.
Sorry about this lack of info. I worked out a few hours ago and I forgot all these details. I just looked at my actual logbook and remembered