I'm just lying in the bath remembering that years ago I became fixated on working words out backwards in my head.
It got to the point I would do sentences even when people were speaking to me, of what they'd said and I couldn't reply until I'd finished.
I had to train myself not to do it and it was such a relief.
Recently I felt stressed and noticed I was doing odd words again.
I've never come across this before, is it common? Or am I just a weirdo lol