Heavily filled tooth persistently painful, but temperature sensitivity improving. Prognosis?

[ToothPatient]

Last worked on 8 weeks ago, the temperature sensitivity is improving, but the nerve has began to hurt constantly without provocation.

It just pulses, sometimes refers pain into the jaw.

Does this indicate irreversible pulpitis?

Dentist at the time said try and give it 6 months before committing to a root canal, but maybe he was referring to temperature sensitivity, not spontaneous pain?

Can this type of spontaneous pain ever subside?

When I do the "tap test" using a piece of metal against the tooth, it doesn't elicit pain or sensitivity.

It's perhaps the nerve is just still traumatized from all the work/drilling that was done on the tooth, and needs more time to settle down?

 

[ToothPatient]

Actually let me correct that, it was consistently painfully pulsing, but perhaps has either become more noticeable, or got to the point I'm finding it difficult to tolerate.