Mine hurt a lot but then it didn't work properly
The dentist said that it was touch and go whether it worked or not and if it gave me any bother then call him over the weekend (had it done on a Friday).
I woke up in the early hours of Saturday morning in agony but I remembered him saying he was spending the weekend with his kids whom he hadn't seen for weeks so I didn't like to bother him (I know how valuable time with kids is when you don't see them often). That had to be the worst weekend of my life - the pain was excruciating.
I went first thing on Monday morning and he whipped it out for me (the tooth) - bliss (was an awkward bugger to get out too, it had 4 roots instead of the usual 2
).
Not trying to put you off or anything mate
Stan