I just received my temporary dental bridge. my teeth that were shaved are feeling a bit sensitive. its been 5 days and i was woken up by pain where my bridge is located. its a throbbing pain. is this normal? dead nerve? tight/loose bridge?

Sensitivity on newly prepared teeth is not uncommon. Address your issues and concerns with your treating dentist before treatment continues.

So many possibilities. Your Dentist is responsible for your post-surgical (Yes, bridge preparation is a surgical procedure). As he/she has evaluated you pre-procedure, he/she is best prepared to resolve any post-procedure complications.