Dear Alo, What you describe sounds more like a skin condition than a breast problem. You may want to have a dermatologist (skin doctor) evaluate these "
spotsBirthmarks - pigmented
Liver spots
Measles, koplik spots - close-up
Mongolian blue spots" for you. A variety of skin conditions could be responsible for what you describe including a benign type of skin lesion called seborrheic keratoses. Your physician should be able to help sort this out.
http://www.intelihealth.com/IH/ihtIH/WSIHW000/9339/10039.html