I had that problem. It only crossed into anxiety when I had much more, but even before that point I had what I would call uncomfortable “overattention” and slee

I had that problem. It only crossed into anxiety when I had much more, but even before that point I had what I would call uncomfortable “overattention” and sleep troubles. The solution for me was moderation. Two cups a day, and no cup after 3:30pm (or rather that’s the latest time I allow myself to start drinking my last cup). Makes them more special, too.