I had a BBL 4 months ago, l have a dent and it’s hurts. What can be done? (photo)

I had a bbl 4 months ago , it hurst and feel weird even when l am just walking. My DR said that lt is normal, but honestly l don’t think it is. Dr offered to put more fat in the dent, but l am more worried about the pain that l am having than for the dent . Do you think that maybe my doctor hit a nerve.. l am doing my research but l would be very grateful if you guys can tell me what can l do now, or what can l start to solve this problem? Thank You an advanced.