loosing my grip

Have you ever felt like you have this night tight, firm grasp on life and then all of a sudden things start to get a little hard and you start to sweat and lose your grip?  I don't know where it came from today, but it hit out of nowhere and I feel like I am going to fall and fall fast.  I am trying to stay positive and realize that I really don't have anything to stress about, but it's not going well.  So I am going to take my sorrows to the porch with a book and some hot tea and hope that this goes away and that my hands start to dry so I don't slip and fall.