<s>[INST] I noticed my head automatically sways from right to left and left to right again... This is especially noticeable when I work with the computer and start walking... I receive a reprise for this condition when I drive or when I exercise... This happened like 1 1/2 months ago and my dr is unable provide an answer of what is causing the swaying... Was wondering whether you have any ideas what is causing it? [/INST] could be a neck muscle contraction or involuntary spasmthese occur if any supplying nerve root is irritableMRI cervical spine can look for nerve root statephysiotherapy and muscle relaxants will help </s>