Thank you for your response. It's as I suspected
I'll definitely tell her to ask her oncologist about this. Sadly my mother is getting treated in Bosnia and the facilities here aren't nearly as well equipped as all the cancer centers in the USA. We may have no other choice in treatment.

UPDATE: I've talked with my mom and well... there's something quite strange going on. First of all her oncologist moved down her node status from N3 to N2b based on the pathology. This is some positive news I think. Her pathology results said that her biggest node was 3.3 cm in diameter but I assumed they put her as N3 because some of them are matted. As for the chemo my mom talked with a doctor friend and she suspects that they decided to increase the rad days from 30 to 35 in exchange of removing one chemo session.

It's all very odd to me, I urged her to at least ask the oncologist to explain their reasoning behind this. Perhaps they can at least move the 2 doses earlier starting from week 1 and then decide near the end what to do with the 3rd dose if she handles the toxicity well.

Christine you mentioned that you ended up doing only 2 doses max because of the toxicity. Is this common? Does it influence on the possibility of future recurrence? Perhaps my mom's oncologist believes the toxicity of three doses would be too much for her to handle. I've also read some scientific articles that concluded that the 3 big doses tended to have slightly better survival rates than weekly carboplatin or cisplatin.

Thank you in advance for any advice you may have for me. I have no idea why everything about this is so unclear it's almost as if I have to be my mother's own oncologist reading about chemotherapy and treatment guidelines. She's already annoyed that I'm spending so much time reading up on everything and that I'm stressing her out because she has 100% faith in her medical team's decision and doesn't want to stress herself out in thinking if some other treatment plan would be better for her.