A few nights a week, she wakes up in the middle of the night with tingling and numbness in her right hand. Joanne works at a desk all day and she notices a sharp, and sometimes throbbing, pain in her feet bilaterally after a long workday. She was thinking that her symptoms were just part of aging, but wonders if it could be abnormal. She has no history of major trauma, alcoholism, cancer, or inherited diseases.