HI, for some reason my post will not let me edit.
This is the original expert, I asked the questions. I have a different answer for you.
In fact arm pain can often be from the neck, the cervical spine.
This is the original expert.
I am a double board certified clinical doctor of over 20 years experience.
I suggest you seen a specialist: physical medicine and rehabilitation.
MRI of the cervical spine.
That is more likely what will happen.
However, WE can not tell you exactly what tests you need, as a structural exam is needed first.
A PM&R doctor is an expert in this type of exam, which will direct the imaging, or you might need an EMG/NCS study.
It would not be correct for me to tell you where to spend your money, on what testing, without a diagnosis.
Find me any time for correct answers.
I will not lead you astray and give you safe, correct answers. Double board certified US doctor with over 20 years of clinical experience.
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Find me as needed.