I understand your dilemma, you are not alone!! I got breast cancer twice, second time around (26 years later) with no cancer gene!! I had my DNA tested. It's only 200.00+ if you can find 3 to 4 people in your family with cancer, and you find out what kind of cancer. Hopefully this will make you feel a little better. But, cancer is a roller coaster of a ride and you will go through highs of I got this, to the lows of I don't (got) this meaning that over whelming feeling. And it's normal, but, it's not normal to stay in bed for days. I have surmised that this is temporary!!!!! Horrible yes, but, temporary. You just have to fight like hell to stay with treatments and tell your brain to just relax! Very hard to do. But, you have to stop driving yourself crazy. the cancer can be self induced like smoking like a chimney and they die of lung cancer to having any of the bad cancers, triple negative, Her2 3+.HER 2 2+ and braca. If I missed some I do apologize. I am really talking about just cancer stuff folks. Starting phase two of treatments soon for herceptin and letrozole. I had a hell of a time with chemo. Just praying that phase two is easier on me. But, only time will tell. Keep your spirits up and have good people around you, helps. No one,... call Visiting Angels, call your breast navigator, PT, neighbors and anyone that will help , and be consistent with you. I learned to be my own advocate, but, need lots of reasearch,but pass that knowledge by your doctors and especially your oncologist. But, the oncologists, stay in their lane. With good reason, so you will need someone who has good medical knowledge about you to assist you in what would be the right medicines or supplements to use with your kind of cancer. The internet, sometimes, is the snake oil of our times and isn't helpful at all and shouldn't be followed. But, if you have reliable people that are knowledge let them help you. But, you are the ultimate person to maintain your quality of life before, after, and during the journey, which is temporary!!! Good luck,but you all are not alone.