I’m only 17, and having breast cancer signs

So, recently I went to the gynecologist for an odor and taste coming from my nipples. The doctor told me it could be my detergent, eating habits, or hygiene products. I haven’t changed my products in a long time, and my eating habits are normal.

However, I started having pain and warmth recently. I am only seventeen and know that I am still growing, however the pain has became piercing. I didn’t take much mind to it until this spot/blotch appeared. It’s on my left breast, where I have more pain. It’s not red but a pink/brown spot, and am worried these could be leading signs of breast cancer. Please help. Opinions and questions and answers appreciated!! :(