Need some help please

I was at the hospital yesterday and they said that my baby must of planted close toy c section scar, I have no pain or nothing around the scar just stabbing like pain that went through my va Jay Jay, but it has stopped , they also told me something about cystic fibroids or something like that,, this is my 5 pregnancy and I've never heard of anything like this before, I have. Appointment today with my OB doctor and last night he called me and said not to wory most of the time the hospital dont see what the OB can see and they are not equipped or trained to see the good or bad, should I be worried, that I'm going to loose my baby.