Our brain is a very powerful thing - unchecked, it can control us in some often odd ways. I used to have a similar problem, where I felt that I needed to respond to an email as soon as I read it. That became monotonous, as you can probably imagine. It wasn't until one of my bosses thanked me for replying so quickly, and I mentioned that I would've gotten back to them sooner, but I was in a conversation at a family dinner, and they told me that it could've waited until the next day that I realised that immediate responses were not always required. It was such a liberating realisation.
Good on you for finding a way to combat the unrealistic thoughts that were attempting to control you.