hi my name is Rhonda and i have a question maybe somone can help me with please

i am 26 years old i have never had children i have alot of problems with my breast i also have little pimple things that white stuff comes out of and i have no clue why i also have a problem with my left nipple itching all the time and its never the right one that has been happening for a few years now i have all all of the above done to make sure their is nothing wrong..... all the testings have came back fine but it all still comes back and scares me and i think that maybe the testings are not detecting it its to soon.... but if anyone can help me or explain a few thing i would love that thanks so much