I have the crying spells too. Most of the time they come after a huge rage that I went into for a silly reason. When I am overcome with sobbing and tears, the only thing that helps me is to think over and over again about the good things in my life and how I don't have anything to complain about. Sometimes it works, sometimes it doesn't. The other thing that tends to help me is to interact with my animals. Pet them, hug them, whatever. I think about how I am making them nervous with my emotions out on my sleeve. I tell myself I have to calm down for them, so they don't feel my negative energy. I think that helps me more than anything. I guess you also have to be an animal lover for this to work but I hope that you can find a way to see the sunshine in your days again.