Hi Sam, hope you are feeling better. I agree don't worry about the food or constipation as long as you're drinking something anything that's the main thing. We all react differently to the same chemo drugs and even chemo no. 2 may well be different to chemo no. 1. Especially as your oncologist/oncologist nurse will possibly adjust your pre-meds depending on your feedback you give them regarding side effects.
I went back to work a week after AC no. 1, looking back now still can't believe I did it. But I felt well enough and I wanted to go back to work. Third day back, I spent the first two hours in the modified duties co-ordinators office crying because I was overtired.
Any rate best of luck with chemo no. 2, cheers Cheryle :)