1. If in a dream your hair is falling out, this could be a warning that you're suffering from serious illness. Pay heed to even the most insignificant health indispositions. If in a dream your hair is falling out and is thinning out, this may mean that your loved ones will expose your double-dealing and hypocritical attitude you have toward them. Hair Falling Out in a dream may mean that you're too worried about others' opinions..