Hi, thanks for the query. Are you a diagnosed case of bipolar disorder by a Psychiatrist & are you receiving any medications for that? If yes, kindly tell me what medications you are receiving for same. Usually anxiety symptoms (like fears you are having) become somewhat difficult to treat in the setting of bipolar disorder as the usual antianxiety mdications (SSRI) can cause switch to mania & drug refractory bipolar disorder. Hence, we also need to clarify your anxiety symptoms in detail to ascertain that whether these anxiety symptoms are underlying manifestations of depression (which usually can occur even despite reciving medicines for bipolar disorder) or they represent separate anxiety disorder diagnosis. At present, I can suggest measures like adjusting the dose of mood stabilizer (which you might be receiving for treatment of bipolar disorder), adding a drug named quetiapine to your pre-existing drug regimen; switching to olanzapine plus fluoxetine combination & adding yoga, pranayama, autogenic relazation techniques, deep breathing etc. (taught by Psychiatrist & Psychologist). Hence, please consult your doctor for either of these; feel free to revert back to me if require any help. Good luck