I was diagnosed at a young age and this isn't new, but I have become more and more frustrated with it: getting to do something often happens slow. In the gym my exercises are often interrupted by many minutes of getting stuck in my head, being distracted.
People talk about how it's okay to take breaks but I sometimes lose HOURS at home because I just don't do anything and it isn't resting either because my head keeps churning without a goal. I call it a limbo between activity and resting. Sometimes my phone or another means of distraction is to blame, but other times it's just anxiety to do something because "is this the best use of my time?" (in general I often have time anxiety)
It drives me crazy because I will have a plan of things to do that's totally reasonable and achievable, but then I only achieve a small part of it because I keep wasting so much time, I then procrastinate on the rest. This mainly affects activities/plans I've set myself, those set by others let me just obey and not have to overthink as much.
Does anyone else relate and can they share means of dealing with it?
I'm gonna try and return to this comment but in the meantime I just wanted to reply with a couple of quick thoughts:
If that description of literally feeling a sort of block doesn't fit then that makes catatonia less likely. It doesn't rule it out entirely but it isn't a flashing neon sign screaming out "catatonia" either.
Have you come across the concept of maladaptive daydreaming before? I wonder how closely this might fit your experience, or maybe part of it? Just mentioning this because I know it's gonna a slip my mind if I don't ask now.