I have been told that it is likely i have fibromyalgia and am being treated as such. is there a chance that it could be multiple sclerosis?

Very unlikely: Ms is a neurologic disease and its symptoms and physical findings are not those of fibromyalgia.

Probably not: While patients with fibromyalgia share some of the symptoms of multiple sclerosis, there are distinct differences which should be discovered by a good neurologic exam. Furthermore imaging studies will show problems that could be related multiple sclerosis and not fibromyalgia. Good luck and i hope you feel better.

Doubt it: The disorders are so dissimilar that there should never be any confusion here. But you could have total body pain from a small fibre nerve disorder. You could inquire about that potential alternative diagnosis.