I'm so sick of whatever my condition is!?

It doesn't sound like obsessive compulsive behavior at all. It sounds more like anxiety attack that causes confusion and jumbled thoughts. If something is causing you anxiety, maybe your mind is trying to redirect the circuit that is short circuiting in the brain, and yours is redirecting toward English grammar, and comprehension. It's kind of ironic, but I use to make and do math problems for hours till I was to tired to stay awake when I had an anxiety attack. I would count things, road signs, noises, without trying or realizing I was doing it. That part didn't go away, but now I have learned other skills to cope with the anxiety and way of avoiding the anxiety. Maybe your therapist can help you with positive redirect. I didn't find out till a few months ago that all this stuff going on was triggered by a hormone that I was over producing.