I saved the consultation letter written 10 years ago by the first neurologist I contacted to confirm my self-diagnosed PD. Among my major complaints summarized in that letter was "a feeling of internal tremor." This bothered me especially in social situations, where I found it distracting. He concluded that I did not have PD--my diagnosis was not confirmed until a year [and two neurologists] later. Hearing about this symptom from so many others is heartening. Another thing I noted that the docs and the textbooks dont know about was the extreme fluctuations in symptoms --"ons" and "offs" --in the early years of my PD, long before I started taking any medications. At least some of the minute to minute unpredictable fluctuations must be inherent in the disease process of PD and not merely a "drug reaction" to Sinemet, as it has been interpreted. Jacquie