Suggest Treatment For Pain In Neck, Shoulder And Arms

For the past three months I very suddenly developed extreme pain Im my neck shoulders upper arms,buttocks & upper legs.I have had every possible blood tests all of which have come back inconclusive or negative.
I am trying Acupuncture,but sadly that isn't really helping much so far,albeit I have only hah 4treatments.
I took myself off for a body massage,but I now seem to be having even more deep burning pains!!!
Please can you assist,& do you feel I should maybe see a Rheumatologist??
Thank-you
Marianne