why crowning has bn done? did your dentist
go for root canal
treatment?if has done rct and crown the tooth thn it is ok,in that casa we have to assume that the pain is taking place due failure of rct.rct can be failed for many reason starting from pt's status to the faulty procedure.but if ur dentist did not rct ,onlt he filled the tooth and thn he went for vital tooth preparation ,thn pain might happen due to secondary caries,or chronic irritation to the pulp .
but in both cases treatment is same ,first remove the crown,thn go for re-rct or rct.
and i believe there will not be any paion in future