Yes, I thought if it was cracked it has to be pulled. Why did they do a root canal, a waste of time and money?
Pain after a root canal is common. I've had severe post-root-canal pain for one to two weeks after a root canal. I've also had root canals that had NO pain afterward. Every tooth is different. All the ligaments and tissue around the tooth deep inside were traumatized the root canal and the irritation can be severe. Kind of like very deep straining and bruising.
You already were told to come back in a few weeks. However, what is the next plan? You said it is filled, but no crown? I root canaled tooth NEEDS to be crowned; I don't even believe it's an option. I am concerned about the fact that they determined it was cracked. I'm not sure if a root canal can improve a cracked tooth, but at the very least, a crown is required.