fluttering pain in upper right side

For two years I have had a fluttering pain in upper right side under my right breast with a burning sensation. I radiates to the back under my right arm.  Sometimes the pain is unbearable.

I have had CT scans, MRI, X-Rays, endoscopes, etc.  The Doctors can find nothing, but put me on Nexium and Lyricia which are not helping with the pain.  I have no nausea.

Any idea what this might be?


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