Is It normal to have sensitivity on a tooth that has been filed down?

Your dentist most likely adjusted the filling not your tooth. If the bite was high, it can take time for the tooth to settle down. The nerves and blood vessels inside the canal can be inflamed and put pressure on the end of the root.Give it time and it may calm down. If not, see your dentist again for another bite adjustment.

If the enamel was ground away and the 2nd layer (dentin) is exposed, then sensitivity can result. If it does not improve in a few days, have your dentist bond the area.