Vivid Dreams Leaving me Tired and Achey?

Most nights I have vivid dreams for what seems like the entire night. Sometimes they are cyclical - meaning I will dream about an unsolved problem or idea over and over again; or sometimes they are just very long storylines. They leave me tired and drained in the morning and I think they affect me in other ways since I began having symptoms of fibromyalgia in correlation with this dreaming. Is there a sleep disorder related to my overactive dreaming? Am I not getting restorative sleep because of this? I've read something about brains that function like they're awake when a person is sleeping - could this be causing my exhaustion and fibromyalgic symptoms? I often dream while I'm half-awake/falling asleep and sometimes react bodily to my dreams (moving feet or jerking). I feel achey and stiff when I wake up and have difficulty concentrating during the day. Should I get a sleep test?