This is an interesting question: how does a person with bipolar disorder think? Of course, it’s hard for me to compare it with your average person as I have bipolar disorder. I don’t have the two thought processes in my one brain to compare.
This is not to say that we all think the same way; nevertheless, I do have some ideas on how people with bipolar disorder think that seem to stand out amongst the “normals.”
Recently I wrote about the phenomenon of “earworms” which (if you ask me) is a type of obsessive thought. It’s when music gets stuck in your head. It’s something that everyone experiences, and it’s annoying but I suspect that earworms are a type of obsessive thought that occurs in those with bipolar disorder more than for other people. (There isn’t evidence of this, but there is evidence that those with obsessive-compulsive disorder (OCD) get more earworms and bipolar disorder may be linked to OCD.)