Hi i have had a lump on the side of my right breast for 8 months. i had an ultrasound and mamogram in january. they said it didnt look sinister. i was to go back in 8 weeks which i did and they carried out a needle biopsy the test was inconclusive. i was told to get back in touch if there were any changes. Yesterday i felt the breast shape had changed, it feels like the breast tissue has separated across my breast or that its hollow behind the nipple. this is different from the left breast which feelsfuller. i called my GP who said to call the hospital where i have been getting seen. the secretary made me feel like i was wasting her time and said that the doctor would call but no one called back. Any advice?