<human>: Last night I was sleeping and I rolled over to a different position, when suddenly my head started nodding uncontrollably. I started to get really dizzy so as a normal reaction I lay on my back and placed my hands on my head for it to stop shaking. It stopped, but my eyes started nodding , I guess you can say, and the dizziness was getting worse. I shut my eyes for a couple of seconds and then it went away. I fully aware of what was going on the whole time, nothing like this has ever happened to me before.
<bot>: Hi, Thank you for posting your query. Uncontrollable (or involuntary) head nodding could be due to partial (or focal fits). It is not a generalized fit, as you would have lost consciousness if it was a generalized one. Short duration of symptoms also favor the same. For further evaluation, you should consult a neurologist. You may require MRI brain and EEG for confirmation of diagnosis. Best wishes, Chat Doctor. 