thank you for your query. bipolar disorder is a disorder of mood and may occur with or without psychosis (e.g. hallucinations, delusions, abnormal speech or behavior). the standard treatment of bipolar is with one or more mood stabilisers (like valproate, lithium etc) or atypical antipsychotics (like olanzapine, quetiapine etc). antipsychotics are preffered for initial management of the disease and/or in presence of psychotic symptoms. Seroquel contains quetiapine, an atypical antipsychotic, very commonly used for bipolar, particularly bipolar depression. from your description, it appears that you have developed EPS (extrapyramidal symptoms, characterised by tremor, rigidity, slowness, etc), a common side effect with antipsychotics (i must mention, among different antipsychotics, quetiapine causes much less EPS). however, you should not be alarmed at this moment, as this type of abnormal movements are completely reversible with decreasing or stopping the drug, and treatment with anticholinergics (like benztropine). however, it appears that you are predisposed to develop EPS, and should share this fact with your treating doctor whenever a new medicine is prescribed. I would suggest you not to worry, and more importantly, not to stop or change medications by yourself, rather consult your treating psychiatrist regarding management of your problems and prescription of alternative medications. And if its of any comfort, many great persons like Agatha Christae also suffered from bipolar disorder, and successfully lived their lives while taking medications. hope i ve been able to answer your query. please feel free to contact me for any further clarifications. best of luck.