There apparently are two subtypes of Parkinsons. I am wondering whether or not I have PIGD. My only observable symptom is that I drag my left heel unless I concentrate on foot placement. As this is my only symptom (other than mild internally felt tremors in my left leg at times. I also note the Sinemet (Levodopa Cardopa) ... dopamine replacement seems to have little or no effect on my minor symptoms. These two facts stated, is this sufficient to put me in the PIGD camp as opposed to the Tremors at Rest camp?