Karen, I am so sorry to hear your news. You have been through enough already. I hope they caught it early enough. You are right, breast cancer is a very complicated disease, not without single cause. I hope I can reassure you that they are working hard to find so many treatments to help. Being in the medical profession yourself, I'm sure you already know this. I have seen nothing but compassion from you, especially in your private messages. I sincerely hope you find success and peace in whatever treatment you choose on your new journey. I must add that I am sorry about your mom, too. I don't care how old we get, losing a loved one does not hurt less. My dad is dying, and I can't seem to prepare myself for it. My greatest sympathies!