Welcome at HCM.
I have read complete details of your question.
It looks from your details that you are having frequent fractures
or burning sensations at your hand.
There can be following reasons for this-
-weakness of bone /osteoporosis
-Deficiency of vitamin b12
-Carpal tunnel syndrome
You should consult to your doctor for this.
An orthopedic surgeon will be best guide for this.
With best wishes.