[rinaina]

I am so sorry for the loss of your mother. I lost my mom 5 years ago and I still miss her terribly. She possessed all the same characteristics as your mom. As far as I know, her2+ is not hereditary. As Tousled said though, you are at increase risk for bc and can always be tested to see if you are Brca I or II positive. A lot of people don't test because it isn't always covered by insurance and also, if it comes back positive are you prepared to do something such as prophylactic mastectomies...if not why do the test then. As for the aggressiveness of your mom's cancer later on...yes, the her2+ factor is what makes this type of bc so aggressive. Perhaps back when she was first diagnosed they didn't test her for her2 positivity. I don't know if you can first have bc and then get her2+ later. I don't see why not but I would wonder if she really did have it to begin with and didn't know.

I share your same birthday..8/21