Parkinson's Disease

[Amy A]

Hello. I am new to the forums here... My 79 year old father has had tremors in his left hand for approximately 6 months. I noticed it during a visit yesterday; it was occurring while he was walking. He also has become very confused and his memory is poor. His face looks "long" and his mouth is open much of the time. Could these symptoms indicate Parkinson's Disease? I also posted on the Essential Tremors board thinking maybe it could be that.

Any advice is greatly appreciated.

Amy