Is it normal for my tooth to be slightly gray after a deep filling? (Photos)

A few days ago, I got a deep filling for one of my teeth. I was told that the cavity was deep, but the filling should prevent me from getting a root canal.During the procedure, the dentist had to use a strong type of anesthesia due to the pain.after the procedure, I was told that the tooth may be sensitive for a few weeks and get swollen, but it's normal. I am still unable to bite with the tooth, whenever i do, it hurts & i think its turning gray. Is this normal due to the anesthesia?