I've got quite a bad toothache and I took 9 500mg paracetamol yesterday instead of 8. When the pain isn't that bad, I don't feel sick or anything (I read the overdose symptoms are nausea and such.) I'm making sure I stick to the regimented 8 today and the 9 yesterday were spread over a whole 24 hours, not just like a regular 18 hour waking day. Do I have anything to worry about for this small overdose? Thanks!