My son has bipolar 1. He is currently being treated for a manic episode, at home, and he normally take Lithium and Seroquel. His doctor has recently increased his Lithium from 1200mg/d to 1500mg/d (his level was only .6 prior to his mania), and increased his Seroquel to 800mgxr and 200mg short-acting p r n, up to BID, and added Epival 750mg BID. he has had severe episodes of vomiting in the last 2 days, with resulting severe petechiae , and facial bruising. Could this be due to drug toxicity, and does he need to go to ER?