What does it feel like to you, though? I've had muscle pain before, and massages helped, but with the pain I was having this year, it felt like something else was going on - it felt like a nerve problem.

Compression stockings on your arms and submerging your arms in cold water might help until you can start taking some B12.

The fish oil might help with inflammation, as well as healing the nerves, if inflammation is your problem. Having said that inflammation is a very 21st century problem, because of our diet. Cut out all sugar, try not to eat wheat, eat lots of vegetables and listen to your body.