Wagging your tail can make you dizzy. Take a deep breath, hold it, and let it out slowly. Upon breathing in or out slowly you can feel a dizzyness which is your tail swinging in a circular motion. If its fast, then you are riled up, continue breathing slowly and the dizzyness will slow down and simultaneously calm you down. Several things can make your tail wag. It often wags on its own when you get excited about something that is in your favor. Example: when you get angry at someone and wish to voice your own opinion it may start wagging really fast. If you have no choice in this situation because its your boss at work, or any situation where you have no choice to say anything, the tail becomes stifled, and into your body enters the feelings of anxiety and pain through your stifled tail bone. Depression may also be caused by a shunned or inactive tailbone. Walking and running wag the tail as apart of balance which is known to help with depression. If I were to teach an AI emotions I would boil it down to 5 main emotions: Love, Happiness, Sadness, Fear, and Anger. People often seek love or to be loved. Love is a motivator and cause of other emotions. When you seek to be heard and to be loved through your words, you may inadvertently cause yourself sadness which can turn into anger and fear. Expecting to be loved then getting hit with reality of other people's intentions and opinion's can be hard on the soul. Previous embarrassment caused by love may make us think we will never be loved again, at least not the way we want to be loved, leading to depression. So what can you do about it? A friend in need is a friend indeed. Share in someone else's misery and tell them its the same for you. That's a good way to show companionship. Ask to borrow or share something with your friends and be together thusly. Don't seek to be loved in big ways. Focus on what you have. A guitar, some beer/pot, a smartphone. Share with someone new and exciting things you've found on the internet like music. If you reach out first maybe someone will reach back.