The only thing I can add is that if you have bad side effects and your meds aren't working to control it enough, then please see you onc or breast care nurse as they can change medications for you to make things easier. I had my pre chemo drugs and post medications changed half way though and it made a big difference. Don't suffer in silence. It is hard but totally doable.
I also found that I couldn't handle straight water so I drunk soda or mineral water with a bit of lime or lemon juice added. I also stocked up on lemonade icy poles for the days I felt real nausea at least it kept me hydrated. Day 3 to about day 10 were the worst for me. ( I was on TC ) For some reason I found carbs easier for me like pastas and chicken noodle soups.. Don't be hard on yourself if you aren't totally healthy with the food you just have to go with what you can handle. I was blessed I didn't have ulcers at all but I used biotene toothpaste and mouthwash which really helped. All the best for the chemo. x