I have undergone root canal treatment by 2 seatings. (one lower molar teeth). After 1st seating I didn't feel anything abnormal issue like pain or sensation. But after completed 2nd seating I feel mild pain in my teeth. My 2nd seating completed before 2 week ago, till now I feel pinch like pain. Sometimes its happened during eating or during resting time, but its not continuing, 3 or 4 times in a day, lasting for 2 or 3 min. Dentist did not given any medicine throughout the treatment. He told me to keep patience for 1 or 2 more week. Is it normal? What should I have to do?