Also be checked for narcolepsy. My mother has this, and in the prehistoric days of the 50's and 60's, they were unaware of this disorder and put her through a series of treatments and meds, until she drew the line at electroshock treatment. She kept seeking diagnosis until she met a neurologist who knew about this disorder. He did sleep tests and other tests, and diagnosed her. She is sleepy all the time because she never enters into the deep restful, restorative sleep that we require. It is not a common disorder, but is a possibility????