We should get hamburger in here to talk about root canals. He had one that continued to cause difficulties for at least a year. Turned out, when he went to a special specialist
that his teeth have an extra root, which hadn't been caught in the initial root canal.
Given that you'd had good recovery, and things are now getting worse, I hope you've called the dentist to book a consult.
((((((( Bella, who needs a couple of just plain good weeks ))))))))))