Do you take it at night? It helps me to sleep and I know that if I take it in the morning, I'm a hot mess- super sleepy. You might b on too high of a dosage. I started out really low many years ago and am now at 50mg. The only side effects I've ever had was drowsiness from too much of the seroquel. Talk to your psych. Side effects r no fun and a slight tweak of your meds is an easy fix.