I go through this every time Im on the night shift of manning the phones and being on call.

everyone has their own internal clocks. most internal clocks dont run on a 24 hour schedule but some through habit and training can change their internal clocks to run on schedules.

many people who work different schedules doctors, military, even non career people can manipulate their internal clocks. for some it takes medications and others non medicated ways.

the way I handle it is we all know a few days to a week when its our turn to man the phones and take the beeper to be on call. I know I have trouble going from sleeping nights to days and then back again. so I use an alarm clock. when I need to be up nights I start setting my alarm to wake me up every few hours at night during the week before I have to be up at night. this way my body slowly adjusts to being awake at night. when its time for me to go back to a normal up during the day and down at night the first few days back on days Im setting the alarm so I get 2 hours of sleep then up for about 4 hours. then stay up all day and sleep at night. each night I go to bed later until Im back sleeping nights again.

I have tried sleep aids to keep me on a sleep at night schedule but that ended in disaster with my becoming dependent upon them and needing more and more, leading into being addicted so I can not use that way any more.

I have never tried the medications that are newly coming out for people who are tired during the day and up at night so cant help you there other than to suggest talking to your treatment providers and they can help you find the right one for you.