I have had an issue with my stomach since. December 2nd 2017?

Hello. I have had an issue with my stomach since. December 2nd 2017. Had an endoscopy done last month. Only found gastritis (biopsy was clear…no precancer or h.pylori infection ) and hiatal hernia. Upper middle stomach near rib cage been hurting really bad but now my upper left side is hurting really bad. Can’t eat (wasn’t eat much anyways) and can’t bend over. Now left breast is inflamed all the way in,my arm pit and can’t move my arm at all. What exactly could it be ? Not just gastritis

Age: 42
Female
Medications: Coumadin (MECHANICAL HEART VALVE), Simvastatin, Digoxin, Protonix, medical marijuana and allergy drops (allergist concoction)
General Information: I have attached ER admit notes.