What can i do if my arm aches from time to time should i go see a doctor?

Depends: Start with healthy lifestyle approaches such as regular exercise, walking with your arms moving for 1-2 miles a day, and a diet matching your normal weight goals. Avoid sleeping with your arm overhead or as a pillow for your head. If there is numbness, neck pain or weakness, see your doctor. Sometimes massage or chiropractic care can help you better understand your body.