I have the dream about getting lost in a place that's familiar too. I feel confused and melancholy when that happens. My interpretation is that I haven't found what I needed. Just don't know what it is yet!

About waking up to a bright light and what comes next, maybe you're afraid of sleeping for some reason? The waking up every 2 hours could be a symptom. I'm just exploring what came to mind.

Waking up so often, though, is something I would get medical attention for. The mind is stronger and emotions more stable with the right amount of sleep.