I have really bad toothache at the moment (had root canal done) I'm having to take pain killers every 4 hours, during the night the pain wakes me up. I had been taking co-codamol because that's the only thing that was working but I took it at night on an empty stomach without thinking and that made me feel really dizzy and sick. Been trying to stick to paracetamol at night but last night I tried aspirin as the earlier paracetamol hadn't touched it...I read the leaflet at 4 this morning it said nothing about not taking on an empty stomach but it did make me feel sick and on googling once I got up found you're not meant to take that on an empty stomach either! Is only paracetamol safe on an empty stomach? What do other people do if you wake up in pain?