What causes a knot feeling in your stomach and pain in right breast and fatigue?

Consider gallstones: There may be several causes for your symptoms, but you should consider gallstone/gallstone attack (acute cholelithiasis, acute cholecystitis), as it is one of the more serious possible causes. Are symptoms worse after eating a fatty meal? Please review with your medical provider as you may need intervention soon.

Hmmmm: Those symptoms are a little hard to put together in one package but if you were my patient I would probably start with the gall bladder and see where the work up went! Good luck