Why do you get dizzy when you spin around?

Why do you get dizzy when you spin around?

In your ear there is an organ called Cochlea. Inside that organ there are 3 tiny semi circles which holds  fluid and when you spin around and around, the fluids all slosh together causing you to feel dizzy, when you stop spinning, the fluids keep mixing causing all of the items around you to blur and spin. On the outside of the semi circles are tiny little hairs which are connected to a nerve cell which is then connected to the brain. The first semi circle detects when you nod your head, the second when you cartwheel and the third when you spin around.