Possible Parkinson's Disease Symptoms?

Hello. I am a 31 (almost 32) year-old man. Perhaps there are a few people out there who have Parkinson's disease and may be able to shed a light on this. For just over two years, I have been displaying a rather progressive set of symptoms that, to my internet knowledge, may be indicative of YOPD. Two summers ago I started whining off and on about feeling "stiff" and "rigid". I felt an internal tremor and was told by a gal who was kind enough to massage me one night that I was "very tense". By December of that same year (2010) I started noticing jerkiness in my arm movements, what I've come to understand as "cogwheeling".

So, fast forward a bit to the latter part of 2011. Rigidity and "cogwheeling" progressed to trunk and ankles and legs and by very early 2012 to my neck. I actually had to cease visits to the local salon for haircuts due to the jerkiness of my neck upon looking down, or simply because I have become self-conscious and social situations tend to bring about tremor and jerkiness when I become nervous.

By spring of this year (2012) I've noticed a noticeable tremor in my right hand and arm which, at times, feels as though it's affecting my right leg as well. It is intermittent. I've always been a "shaky" person and chalked it up to many things, but it's obviously more pronounced on my right side and happens when my arm is hanging by my side or held up in a supported position. I've noticed lack of right arm swing and have also took note of a decrease in facial expression and blinking. ANY insight would be appreciated. Thank you.