A dream that shows an infestation of pests or a pesky problem like mice, rats, snakes, flies, or any of the plagues is a sign that you may be losing control over something in your life. It could also be a sign that you are overwhelmed in a specific area. Have you had extra responsibilities placed on you? An infestation could also mean that you have a problem in your day to day life that you are not aware of, that is lurking behind the “walls” of the situation and about to create a major problem for you. How you deal with the infestation in your dream, or the people that help you do so, will be very helpful to you in determining what needs to be “exterminated” in your waking life.