My right side of my body hurts mainly in my joint areas, what does this mean?

Just been experiencing a lot of pain in my right should joint which was the 1st pain (pain exceeds down arm to elbow joint area) as I do work out consistantly every week at the gym. Not doing anything strenious as far as more weight than I can handle as the pain seems to get worse on the right side of my body...from right side of my neck to shoulder joint to elbow joint to ankle joint now. Any ideas what this may be beside me getting old...LOL Thanks =)