Partner is TN , treatment friday

Hello all, I have questions and hope someone can help with info. My partner was dx one month ago TN , and hasn't had any treatments yet. She is in terrible pain the tumor is under her left arm, another between her ribs on left upper side, one path report and breast surgeon says growing in and out of her lung. The other doc which the onc. sent her to is a lung doctor said it's not in her lung but outside her lung pushing on the lung. Also bone mets. All of her pain is at the left shoulder blade and whole left breast numb but hurts inside. She is taking alot of meds, tramadol,flexerall, and some moraphine, but she doesn't like it because it just makes her tired. She also has some bone mets to hip and a couple spots t3 and t8, which she really doesn't have any bone pain. Her liver, kidneys, ect. good. The thing is the onc. is still trying to find out if it really is breast cancer or lung cancer. The lung doctor said its most likely breast cancer because lung cancer doesn't go to bone or under arm, Oncologist said unusual because breast cancer doesn't usually go to mediastinal area. Her tumor is close to the main pulmanary artery.

My question is the oncologist is starting her on Taxol, carboplatin, avastin this friday. He said all day treatment, 8 hours which includes putting the port in. He is gonna use arm port, which is ok with Chris since her chest hurts now and doen't wanna be prodded anymore. The oncologist is sending her biopsy tissue to U of M to see if they can say if it is truly breast cancer, or lung cancer. Has anyone heard of this combo of chemo? Onc said pretty tough stuff but since she is young 45, and is good for lung or breast cancer he said this combo most agressive approch. He said this combo could cause death if you get some infection or something, I think something to do with bone marrow. ( don't mean to scare anyone) No One really sugested anything else and Chris is strong now, I seen her take alot of pain and she thinks they should get going now. Has anyone been on this combo? What side effects should we expect?  Thanks for any info. You can read more about her journey under stage 4, My Partner board.

Thanks again,

Cyn