Common symptom of GERD is frequent heartburn. Generally shoulder pain and gerd are not associated to each other. However may cause referred pain to the back in the region between the shoulder blades. Shoulder pain prevalent cause be due to rotator cuff tendonitis or it's be a case of frozen shoulder.
Next Steps
Cupping therapy with energy photons have fruitful results in such cases.
Health Tips
As a home remedy, 1. methi seeds 6 gm decoction before breakfast, 2. go for cold compression (with ice) twice a day.