I had a accident last year I caught my right hand in a grinder at work I did not break any bones only crushed them in four fingers and needed skin graft which has taken very well but I have limited use of my right hand I cannot make a fist or grip anything pain not to bad but this cold weather makes it stiff,also when exercising my hand my bones in my fingers are clicking very loudly no pain with it but acheing quite a lot constantly please can you give me any advise, my doctors says it could be arthoritis.