Hello If I were her treating doctor I would have advised her for a battery of tests like blood for hemoglobin, CBC Liver and kidney function test, EKG, an X ray chest ultrasound of upper abdomen and endoscopy if need be. Here I would like more information like her age and relevant medical history Is she having any symptoms of acid reflux, breathing difficulty She can take ibuprofen for pain relief with anti acidity medicines like pantoprazole or omeprazole with antacids Hot water packs may help her if it s a muscular pain. In my opinion she should consult a GP for physical examination and abovementioned investigations in order to establish a diagnosis and further course of action Thanks for your question Best wishes