Experienced visual sleep starts, in which a blinding flash of light awakens the sleeper, but these cases are extremely rare why am i having this prob?

Not to worry: Benign: Visual sleep starts were first described in the german literature as jolts or bolts of terror (schreckblitzen) or waking bolts or jolts (weckblitzen)the only danger is that you could develop a fear of sleep because of them or an anxiety disorder. They are triggered by stress, caffeine, exercise before bed. www.capitalregionspecialsurgery.com/sleep-wake/sleep.../sleep-starts/‎.