My mom also has other medical problems, including constant nausea for the past 3-4 years. No one can determine the source. She forgets that she has just taken her nausea med and asks for it every 5 minutes until it is due 3 hours later. Same for pain med and anxiety med due every 4-6 hours. Night after night after night. She seems to be OK about it during the day but as soon as the sun goes down, it starts up (sundowning?) again. Any advice would be appreciated!