I have had some sort of viral infection for the last three weeks, involving me taking paracetamol and ibuprofen back to back for a week, then day nurse/ night nurse, then just paracetamol. I stopped taking anything about two or three days ago, but now have a headache that. Is persisting. I have taken paracetamol this afternoon to try and shift it, but it hasn't gone.
Could it be some sort of rebound pain?