Dear mam Nothing to worry about Firstly, Please check your bra, is it very tight? which may result in muscular pain. Also, please give proper support to your beast If pain increases by movement you can take following homeopathic medicines Bryonia 200 twice a week Ferrum phosphoricum 6x 4 pills thrice a day (in Luke warm water). I hope these suggestion will help you. Thank you for choosing us.