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So it's time to see an MD
There are many potential causes for this, but, most concerningly, you state that this pain is worse with exertion.
The first thing to look at is your heart.
Even though pain from the heart (angina) is usually experienced in the chest and not the back
It is quite possible to have pain from the heart ( a precursor to a heart attack) that is felt in the back.
Other things on the list are also concerning.
While rare it is possible that an aortic aneurysm could cause this type of pain.
these are both dangerous conditions that you do not necessarily (or even likely) have, but they must be ruled out
You are 59 years old and are at risk for heart disease so it is time to switch from your chiropractor.
You will need an EKG and some blood work, and will likely need some imaging, either Xray or CT scan, to get to the cause
Certainly this could be a benign process, but, at this point, given the length of time you have had these symptoms, it would be foolish to assume this.
I am sending THIS LINK for your information.
Understand that from a doctor's perspective, pain between the shoulder blades IS considered 'chest pain' for the purposes of the medical workup.
You do not need a specialist at this point, but, rather, an Internal Medicine physician (adult medicine).
He/She will likely be able to get this figured out, and, SHOULD you need to see a specialist, they will make it happen and refer you to the appropriate one.
Thanks a lot!
you are most welcome
do you have further question about this for me?
are you there?
Yes, I am.
No, I think this answer is enough to make me sad :)
do you have anything else for me this morning?
what is 'benign process?'
Anything that will not cause long term harm. For instance, it is possible that this pain is coming from your ribs or muscles of the back. My concern is that chiropractic has not helped AND you get these symptoms when exerting yourself. The pain with exertion makes this very important to get evaluated by an MD as soon as possible. I hope this helps.
Have a great day!