Sounds possible to me, but then again I'm a kid (pretty much ).

Bipolar can cycle like that; it's called rapid cycling. Also, plenty of bipolar people don't hit complete breaks with reality and can still function (during episodes, it's possible that you. Black and white thinking, as well as disorganized thinking, are more signs of schizophrenia than bipolar disorder, but I may be wrong. On the note of the anxiety, bipolar can occur with other disorders as well, so it could be a straight up anxiety disorder to explain that.

Overall, that does sound like you might be right. Just a few questions:

Do your meds keep you cycling or inhibit it somewhat? (A lot of antidepressants can trigger manic episodes.)

Do you see a psychiatrist, and if so, have you told him/her about this?

I wish you the best of luck with replies and getting this figured out.