answer:In my personal experience with bipolar disorder, I can’t readily tell the difference until afterwards. That’s the problem. I can’t recognize the unreasonable, delusional fears from the legitimate ones. (Running from a bear is excepted, of course.) I have a couple of very close friends whom I tell everything, and they help keep me on track. I rely heavily on my therapist, too. She will quickly decry anything too outlandish. I take medicine for my bipolar disorder: one anti-psychotic, one anti-depressant, and one mood stabilizer. It all works to keep me on an even keel, more or less.