Who should i ask about excessive sleepiness: pcp or psychologist?

Psychotherapy: Have your PCP rule out any organic impediments to sleep. Then ask yourself what environmental and interpersonal stressors you face during your waking hours, and whether or not you find yourself obsessing about them at night, which could be resulting in sleep loss. Consider going to a reputable psychotherapist for stress management therapy, and exploration of non-biochemical sources of anxiety.