I feel in a daze or like I'm dreaming while awake?

Dazed. Check side effects of any prescription or otc meds you are using. Are you getting enough sleep?
De ja Vu. Depending on your age, that could be a symptom of anxiety, underlying mood disorder, personality disorder, or most likely normal, assuming it does not occur daily. If so, consult your pcp for some workup to rule out physiological causes for anxiety.