Had an endoscopy yesterday because of acid reflux symptoms and right sided back/shoulder stiffness. All that was found was gastritis and biopsy took for h pylori bug. I still don't know why i have right sided back/shoulder stiffness/pain everyday that seems to be getting worse. It's even started feeling stiff in the top of my right arm too. All my bloods are ok. I am having an abdominal ultrasound on saturday to check my gallbladder.