DS is 8. He asks the same question dozens of times a day. It isn't a "what are we doing today?" or "what's for lunch?" type question. It's a question with a single, factual answer that he already knows. He'll ask the same one for a number of weeks and then move on to a new one. He may have more than one going at a time. Think along the lines of "what colour is grass?" He's talking for no reason. There is no need to ask the question.
Is it anxiety? Is it a form of intrusive thinking? If I'm honest I am similar but I'm doing it inside my head rather than out loud. I already know my thought patterns aren't healthy and involve other intrusive thoughts.
Should I be worried about him? Is there anything I can do to help? Or is it normal and nothing to worry about?