This is the feeling you get on a Sunday, usually in the late afternoon or early evening. It usually results from a combination of an uneventful weekend and anxiety over work the next week. Symptoms of Sunday restlessness include going on a drive aimlessly around town, going for a walk, or going into a store for no real reason. Being unhappy with your job increases the intensity.
I went out for a drive to alleviate my Sunday restlessness.