What's with my repetitive hand motions? Does anyone else do the same thing?

Yeah i do some very simular i kinda ring my hands but i do it so much of the years i have calesus and scars from it( the people that notice my hands always think its the strangest thing) i always wanted to know why i had this "figitiy" habit nice to know theres atleast one other person trippin on it lol ever find out a good answer send her on my way please