Hi welcome to Health care magic forum.
Thanks for choosing H.C.M.Forum.
You are 59 years of age, Had an accident 3 years ago, and had 8 screws in the left arm. You got weakness of upper body, pain of both limbs
, itching of armpits.
Plates and screws are there in your left arm, as it is already 3 years passed you should get the plates removed. Other wise there is a possibility of accumulation of the absorbed metal in the tissues, and cause side effects.
So consult an orthopedic surgeon and get the plates and screws removed.If the itching have no relation with the plates you can consult a dermatologist
Wishing a comfirtable time .