Hi Shey Here, 39 Y/o And Was Diagnosed Of Fibroadenoma

Hi Shey here, 39 y/o and was diagnosed of fibroadenoma on both breast. Right Fibroadenoma's size is 15 mm and on the left is 4mm. Also got fibrocystic on the left. Diagnosed through core biopsy. Was advised by breast surgeon to have lumpectomy, but I'd rather go on natural healing. Please advise.
My height is 4'11 and weight aprox 45 kls. Appreciate your feedback on this.