What an arduous path you have been on! Feeling nervous about chemo is perfectly normal and sensible, but it's almost impossible to predict how any individual will react until you start. Tiredness and nausea are the most frequent side effects but even those can vary a lot, between individuals and between various chemotherapy types. If you can take someone with you for your first appointment, that can be very helpful. They can take notes and prompt questions that you may not think of as the first discussion can be somewhat daunting. Remember that if your oncologist reels off a lot of side effects, you are not necessarily going to get all, or even many of them. You will need a few weeks, depending on what treatment you have and how often, to work out what impact it is having on your day to day life (hopefully it is devastating any cancer cells irrespective of how you feel, that's the whole point). I only had one positive lymph node too (single mastectomy though and 17 nodes removed - they looked decidedly suss but were just aggravated) and while I did have some side effects, including a couple of long lasting ones, I had no nausea or fatigue, worked through treatment and have never regretted having chemo. Ask about cold cap treatment, it may save your hair, but most of us have muddled through the bald phase somehow and enjoyed a new look at the end of it! It will sound like an eternity of treatment at the start but each one is one less, and you will be halfway through sooner than you imagine. Very best wishes.