i have flat feet and over the last 3 years it has become very painful. my big toes is constantly in the air (it will not align itself witht he other toes)with the tenton above the toe being very tight. I also have cramping in my arches. firstly the muscles in the arch with begin the spasm until they spasms become so strong that the foot cramps. whilst sitting you can see the entire arch do a type of dance as the muscles kick about. what is this???