Why did I not see this when you posted it?

I find driving so weirdly cognitively draining (and I honestly do wonder if it's soemething on the thyroid stuff: I saw a significant drop in my ability to cope with driving when it hit, especially with anything that involved more than nominal traffic sequencing (like having to figure out when to do left turns at moderately busy intersections: I only have one each way on my commute right now, and it's very helpful. The rest have lights.)