Teeth at bone graft harvest site feels numb after 3 weeks is this normal?

Hello goodnight, I did a bone graft surgery on march 22, Wednesday of this week will be approximately 3 weeks. The bone was harvested from my chin area for the maxillary sinus area of my mouth for 4dental implants. Ever since I did the surgery my lower front teeth has been numb, I can hardly feel them and it's very uncomfortable, I see my doctor tomorrow but I just want to know if this is normal or is it long term. Scared