i do shifts too mate.
6-2:30 one week and 12:30 till about 8 the next
on the sunday night after a week of lates when i have to get up at 5 i can never sleep.
i dont feel to tired through out the day really just dont get to sleep very well.
then after about 3 hours sleep on the sunday night and getting up at 5 each day by the end of the week im truely fucked as u just dont get chance to recover.
i started taking a nytol at about 10 on the sunday now. then just sit around and relex and watch a bit of telly in bed and i find i get to sleep ok now.
dunno if its the tablet of mind over matter and my thinking i should sleep better now coz of taking it.
as for being tired in the day, u sure u aint anemic or anything?
maybe take some multivitamins to make sure ur body is getting everything it needs and see how u feel in a week or 2.