Hi ..Iam 24 yrs old and mother of 9 months kid ..I have found a small bump under a left breast ,not really it looks like bump outside but if I touch it I feel it ..consulted a doctor she said it's just a normal one and gave tablets so it went off..now after 10 days found a pimple like one under another breast which has a small pain if I touch and can be seen like black pimple from outside ..is it a sign of breast cancer m??????????