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Sometimes you feel so depressed but you have no idea why you feel that way. Your emotions are all over the place and you can't get a hold of yourself. But the good thing about being sad/depressed is that it happens to everyone at a point in time and you can always snap out of it if you have enough willpower to do so.
Holly Riordan of All Women Stalk lists 7 things to do when you are depressed: