You are right, no one can tell you how you will feel. I did AC treatment 5 years ago, and tolerated it pretty well.
I felt nothing when the chemo was being infused, and I went out to eat afterwards. Mistake there...I would suggest sticking to soup and crackers, even if you feel fine. While I felt well, my stomach rejected it a few hours later. By night time, I felt tired and a little wierd, but never had nausea. I actually felt a little restless from some of the pre-meds...but there are more meds to counter any negative side effects.
Don't suffer in silence...whatever you feel or experience, there is probably something to lessen the symptoms. I would encourage you to ask the RN about taking a stool softener, as the meds can be consitipating. That and eating dried apricots worked for me.
I found my symptoms were exactly identical on each of the 4 cycles...from the time of day that I would reject my lunch, to the time on Friday when I got acid reflux. My taste buds went wacky on Thursday and recovered on Friday....chemo was Tuesday and I worked half days on Thursday and Friday, then worked normally for the next 2 weeks.
The anxiety of not knowing what to expect is usually worse than the chemo itself....just be sure to drink lots of liquids and rest when your body tells you....
Hang in there, you'll do great!