Is the "rocking of the head forward and backward" a symptom of PD. My wife (age 75) does this a number of times a day and usually says that she is not aware of doing it. I notice it almost exclusively when she is watching tv. The rocking may last only 10 to 15 seconds or as long as about 3 minutes. Her hands sometime shake - not necessarily at the same time of the head rocking. Also, she constantly drops items from her hands, usually 10 to 20 times per day. What do you think? Thank you very much. Keith E. Jones, Jr.