Dismissed by GP

Hi everyone. Sorry about my whining in advance. I found a thickening in my breast a few months ago and finally went to my GP. She agreed there was a definite thickening of tissue but said it would be ok. Since I am having a tiny amount of spontaneous discharge that I find on my bra and it's sticky. Also the nippier is itchy but inside, not the outside where I can scratch! I'm 47 and peri menopausal. What would you all do? Thanks in advance for listening x