There is no obvious relation to paracetamol
The circumvallate papillae normally appear large. They can be bigger if they are injured (brushing), infected (flu
etc), inflamed (hot fluids or food)
Usually it will be back to normal and needs no treatment.
They won't 'affect the tongue'
If they don't improve and/or if you are worried, see your doctor
As it is, nothing to worry