I have a 16 year old daughter who has been sick for over 6 months. It started out with her feet turning purple no pain, then cramping in calf, then sever lower back pain, headaches, shoulder and arm pain. When sitting or standing over 10 mins her legs and feet become very mottled, She has had so many test and seen so many DR's and no answers yet. She can no longer attend school or do anything that she enjoyed a year ago. Does anyone have any idea of what I can do for her.