Nov 21 - verbs about sensation

I want to translate "my finger hurts" to Spanish:

1- Me duele el dedo.

2- Me duele mi dedo.

3- duele mi dedo. Or mi dedo duele.

I know there is some limitation for using possessive adjective for body part. So i am sure number 1 is completely true. But how about number 2 & 3? Are these sentences are completely false or they are used in Spanish but in less frequency.