OCADD - You're so messed up in the head that you can't focus on one

You're so messed up in the head that you can't focus on one thing without going completely insane.

I was trying to watch a movie, but I had to answer 5 texts, do my homework, and remember to brush my teeth. I'm not even half done.

I had a test today, but I kept thinking about my mom's weird new haircut and the weird math problem on the test. Now I have a headache and I failed.

I was trying to text my crush, but I kept thinking about my math homework and my dog eating my homework. Now I'm just confused.