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Generally breast pain that comes and goes and disappears in between is due to fibroadenosis. This is a benign condition and often there is no lump associated with it. It is often a symptom of pre menstrual syndrome. It generally responds to drugs like Danazol. Pain felt primarily under left breast is often due to acidity and gastric reflux. Low Vit D and anemia too can cause pain that appears to come from breast. It can also be due to costochondritis. Make your daughter wear good support bras, eat healthy and avoid excess salt intake and excess caffeine.
Please consult a gastroenterologist and an orthopedic specialist. Please let me know if there is any thing else and do keep me posted. Take care!
Thank you for your response. Unbelievably, fibroadenosis is a condition that has never been mentioned or explained during our multiple visits to breast care specialists. We have an appointment with a new ob/gyn group next Monday. I will talk to the doctor about of the conditions you mentioned. I have often wondered if this is some kind of "nerve" condition due to the intense burning pain my daughter feels. I would also like them to check her for anemia as well as vitamin D deficiency. Her grandmother also has a Vitamin D deficiency. Because she already has vitiligo and celiac, I am concerned there is something else going on with her immune system. I was also wondering if you knew of any auto immune diseases which manifest in this way. Again, thank you for your input.