Hi Hannahjane. No doubt this whole experience has been distressing for you but remember you are the one in control. I agree with the other ladies and think you should consider asking for a referral to a breast surgeon. The best possible way to be sure is called a triple assessment and that includes a manual exam by a qualified doctor, imaging and a biopsy. All three together are common practice and you have every right to request this. I hope it all works out ok for you. Please let us know how you get on.
Take Care. Polly