What Causes Numbness And Pain In Hand?

I AM 29 YEAR OLD. 2 MOTH AGO I WAS FEELING NUMBNESS IN MY LEFT HAND AND MILD PAIN IN LEFT HAND. then after 20 days i was having clicking and popping sound in left sholuder without pain . now i have clicking sound in right shoulder also. no back pain or morning stiffness.
HLA B 27 +
ESR 12 MM/ HR
ALKALINE PHOSPHATE 117 IU /L
WBC 10.4 THOU/UL
C REACTIVEE PROTIEN 4.26 ,G/L.

I AM WORRIED FOR CLICK AND POPPING OF SHOULDERS. NO FATIGUE, OR FEVER .
WHAT IS THIS IS IT ANKOLYSING SPONDALYTIS OR VITAMIN D DEFICIENCY OR VITAMIN B 12 DEFICIENCY . HOW TO CORRECTLY DIAGNOSE MY PROBLEM. i AM GETTING WORRIED FOR MY HEALTH . kINDLY HELP.

THANKS
SUMIT