Dear Scot:
Sorry that your having problems with you hand. My best advice is to see a neurologist to get a full examination and evaluation. There are many diseases that can induce a "claw hand". These are muscle diseases, systemic diseaes (such as scleroderma, arthritis), congenital abnormalities, etc. It is best to see someone who can do the proper exam and take a good history.
Sincerely,
CCF Neuro MD
In case it is relevent, I am only 23, and this hs been happening since the birth of my eldest in 1996.