The name of Sioux gives you a very idealistic nature. Should your finer thoughts be ridiculed, you become hurt and withdrawn. Insecurities in relationships may lead you to possessiveness, jealousy, and deep moods. Although you give the appearance of poise and confidence, you are reserved, sensitive, and self-conscious. Refined and dignified in your manner, you dislike crudeness or coarseness. Often, it is only through writing that you are able to express your true feelings freely and convey your deep appreciation for those in close association. Your need for peace and harmony causes you to withdraw from any form of friction or confrontation. You are selective in your friendships and drawn to those who share your higher ideals. Health weaknesses could affect your heart or respiratory system causing lung problems such as pneumonia, asthma, or shortness of breath. When under pressure you could experience sensitivity or tension in your nervous system that feels like butterflies.