I showed these posts to my sister who is a psychologist in another part of Scotland. I showed it to her mainly as people just look at me and think I'm daft when I try to explain, here is her reply

Interesting. Not sure this is ever commented on as part of the condition in diagnostic criteria, at least not in this way.

I also have thoughts in my head the whole time, and can get certain phrases, names or songs stuck there, but usually only when I'm not occupied (very often in the shower), so I can ignore it when I'm doing something else, like watching tv. So the thoughts you have in themselves are not abnormal, but the 'volume' is.

You should look up Mindfulness techniques.