I had a full body swedish massage 2 weeks ago. i felt arm pain the next day and wondering if it could be from that? what should i do to treat it?

Maybe muscular pain: This may be muscular pain. With your description that it occurs after the massage, this will be my first thought this is two weeks later now and are you still having the same pain at this point you may want to try heat, and depending on the rest of your clinical issues perhaps an NASID. Since this is a major issue I would discuss it with your physician