Dental bridge sensitivity and dull pain.

My 15-year-old dental bridge was replaced as the last abutment tooth had sensitivity. It has undergone RCT and the permanent bridge was fixed last Saturday. The last tooth in the dental bridge still has pain and sensitivity. The pain was unbearable on Monday so I took naproxen 250 mg on Monday. On Tuesday, I felt almost 95% better with no symptoms. Again yesterday the pain started and progressed throughout the day and towards the end of the day there was mild sensitivity as well. I took another naproxen 250 mg last night. And this morning the pain has reduced but the mild sensitivity continues. I'm seriously panicking. P.S: I am also afraid removing the permanent bridge again now will be impossible as the dentist used a bonding cement to seal it well. This whole ordeal has taken a great deal of toll on my mental health.