Im having extreme sharp pain in my left arm, sometimes its goes to my left leg aswell, i can pick up weight still but with pain , also i can push with my arm aswell, i have had this pain over two months and although i have tried to do as little strain work on my arm, it still keeps me up all night. If i move my arm in a quick way then the pain is unbearable/ Im male aged 43 and 5ft 5