Stabbing pain

Over the last few months Iv been having a sharp stabbing pain through my left breast it is mad to explain but it's like a shooting stabbing pain feels like it goes from the nipple upwards towards my armpit theirs no lump snd under my right arm pit it's a dull aching pain again no lump I can deal with the armpit pain but the other side it's not constantly it will come and go and because of covid I can not get a appointment my breast look the same they no obvious sign looking in a mirror they look normal but doing my head in my mum had breast cancer 2 year ago and she had to have her breast if we was told my mums cancer was a hormone one and she is having to me on meds for rest of her life due to her type of cancer the hospital me and my sister because mums cancer was hormone we should contact our docter to be tested but was told by GP we would have to pay So am worried