Welcome to Healing Well! I have a sensitive stomach and have had gastritis and esophagitis (before my Nissen surgery) many times. Healing takes a long time, and requires lots of patience. With each episode I'd lose about 20 pounds and it would take about 2 months to heal.
I never had the pain you're describing with any of my gastritis/esophagitis episodes. You might want to check into other possible causes. There may be others who will come by with similar experiences, but I don't recall hearing about that type of symptom here on the forum.
Has she had any testing of her gallbladder? My husband has gallbladder attacks which involve severe pain similar to what you're describing.
Sorry to hear she's struggling. She's lucky to have you seeking answers!
Nissen Fundoplication 2/09
"Whatever you fight, you strengthen, and what you resist, persists.”
“Worry pretends to be necessary but serves no useful purpose”
“Accept - then act. Whatever the present moment contains, accept it as if you had chosen it. Always work with it, not against it.”