My wirst was hurting every time I'd move it, so went to the doctor to check what it was.
We took X-ray but my bones were fine, ended up i have "Ganglion cyst" *^*
He said its very common and its basically over use of my wrist or hand (I guess drawing.)... :(
He told me I need therapy twice a week and that I shouldnt draw as much until it gets better... T^T