New member - Question re oral chemotherapy capecitabine

Well, I’ve almost finished my first round of capecitabine /Xeloda. All fine until day 12, when the headache kicked in and I had a nasty nausea/vomiting episode. I also feel quite foggy and have noticed my memory is seriously poor (maybe fatigue). It worries me that I will have trouble managing work at this rate...Hopefully it will all lift in my week off the meds. Is it others’ experience that things settle down after a couple of rounds? Cheers.