Racing thoughts are a hallmark of bipolar.

I happen to know because I was at some point diagnosed as bipolar, then tested by a neuropsychologist who did not find bipolar using a battery of tests, and later questioned the bipolar dx with a psychiatrist who, six months later, believes that it is unclear whether I have it since it is episodic and six months is not long enough to say, but believes that most likely I do not have it. The two things that lead them to believe that most likely I do not have it are:

- my dependence on having enough sleep (people in mania do not need sleep, and although I sometimes cannot sleep, I need sleep, and when I cannot sleep, I am completely miserable, whereas people in true bipolar mania do not get miserable and instead may even enjoy sleeplessness)

- my never having experienced racing thoughts.

I have read a lot about racing thoughts, talked to the psychiatrist, read through the accounts of racing thoughts here on the bipolar forum, and simply cannot relate to them. I may have lots of ideas in my head, but they never clash in my mind nor run in parallel - I am always aware of all the associations that thoughts bring up even when they are complex, and the ideas always make sense. People describe racing thoughts as having several radio channels playing in their head. I have never had that - my thoughts go in sequence, one after another.

This phenomenon of racing thoughts is very unusual and suggestive of bipolar, and not of changes in mood that follow the female's cycle.

So if indeed you have racing thoughts, you need to see a psychiatrist (and not just your therapist) about them, and possibly do things for bipolar management. That said, since another big thing with bipolar is sleep - have you had time when you did not need sleep? or, alternatively, slept for way too many hours - 10, 12, 14?