a couple of things:

1) my wrist hurts a lot when i play guitar, and i think it was caused by playing guitar. it also hurts in the morning, then i get used to it throughout the day.
is anyone familiar with this problem, which i think is related to playing guitar?

2)when i bend my knees it really really hurts. i basically cant bend them. when i say bend them i mean the full way. like if i were to do the water sport, kneeboarding, i would be in a lot of pain. and i cant sit on my knees the full way down either.
what is that all about?

and how can i help these problems?