The day of her treatments, my sister would be confused (especially on very recent happenings), she would be slow in her movements, her head would often hurt (they were able to mitigate that by adding meds or caffeine to her IV), she would often be a little nauseous, her depth perception was off and she was scared when she'd get home...not sure why but I made it better by going in and staying until she relaxed when we got to her home.