Read away!
http://myhandwriting.com/FAQ/
Kinematic analysis of handwriting movements in
patients with obsessive-compulsive disorder
http://www.ncbi.nlm.nih.gov/pmc/arti...v070p00605.pdf
Can Handwriting Help Diagnose Mental Illness?
http://www.articlesbase.com/health-a...ss-177216.html
Any number of things can change a person's handwriting style, some only temporary: what disorders you may have (such as bipolar disorder, dissociative identity disorder, OCD, ADD) which change how you feel and respond, whether you've had enough sleep, whether you're low or high on sugar from soda i.e., whether you're feeling blue and moody, etc.