I don't know, IT. Of course we can't actually diagnose you. Actually I am having a similar life/experiences. Like you, I have certain sites I regularly go on and my schedule is mostly the same each day.
Just awhile ago I kept having the problem with thinking of words and then having to go through all the words that might rhyme with them. That's one reason I got out of bed and came back on here.
So, I am interested in what folks have to say, also. I am not too concerned myself with having a pretty basic routine. I do break it sometimes to go places. But I am annoyed with the repetitive thinking pattern. I spend a lot of time with word games, so is that a possible trigger?
Do you mind telling us what kinds of thoughts you are having?