I suffered a lot with digestive issues during chemo which continued well after. I was on Ativan for nausea which worked really well (but does make you drowsy) and Somac for reflux but that stopped working after a while so I switched to Nexium (20mg). I found that what I could tolerate changed throughout chemo but pasta worked well for the whole treatment. I also drank a lot of sparkling mineral water. I could tolerate hot water, but cold water just seemed to sit in my stomach. I also found hot milk to be settling.