hi and welcome to HCM,
Your history says you have developed pulpal infection in the upper two teeth after the filling was done.
This suggests that there was some kind of infection or remnant caries left unexplored that has spread to the tooth nerve
leading to pulpitis
Since you have got the root canal
procedure done , the upper two teeth should be no vital as the procedure devitalises the tooth completely by removing the infected nerve , cleaning the canals and sealing the root apex of the tooth against the underlying tissues so the infection should not spread to ear or other parts if the root canal was done sucessfully.
i would suggest you to get an OPG radiograph done , which will show the exact picture of treated teeth , underlying bone and the affected vital structures , accordingly treatment can be carried out .
if there is any infection left in the tooth or the canal left unexplored , the tooth needs to be re treated by root canal .
i hope this helps,