I am 28yrs old, a few months ago I started having uncontrollable head nodding which lasted a few seconds, gradually the movements became more violent and lasted for longer periods of time from a maybe 1-2times for 3seconds a day to more that 7times at longer periods each day. I have been for EEG's and MRI's both have come up clean, I was put on rivitol and activan they helped for a few days but the nodding started to return. I have been to a few neurologists who don't have an answer for me and concluded that it might be anxiety but as stated above the medication had little effect. I have lost hope in finding a solution and am now desperate. The "attacks" happen throughout the day with my muscles tensing up and after the attacks I have a headache.