<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi doctor, a couple times a day my 9 month old daughter seems to have a head twitch where there will be a repeated involuntary motion of turning her head back and forth slightly. She is extremely healthy, happy and not on any medications. Is this just due to an immature nervous system?  <response>: Hi, No please, this does not look like an immature nervous system. If she had been developmentally normal till now, then we should consider this only as a repetitive behavioral pattern. I suggest you get her evaluated by your pediatrician for her developmental pattern and if every thing is normal, it will settle spontaneously. Hope I have answered your query. Let me know if I can assist you further. 