‘Though your feet and favorite stilettos can seem far removed from your back, they really can be related and contributing to your pain and, in turn, stress and fatigue. “Feet are like the foundation of a building,” says David S. Wolf, DPM, a podiatrist and professor of nursing at the University of Texas Health Science Center at Houston. 
“If the feet are mechanically unsound, they can change the alignment of all the structures above them...”’
Ref: http://www.everydayhealth.com/news/best-worst-shoes-back-pain/
Photo ref: huffingtonpost.com