I'm super freaked out!!

I went to laborband delivery yday bc I was in major pain to the point I couldn't drive well I went and they didn't know why I was having so much pain except possibly her kicking in my pelvic area well ok but they found some kind of pocket on ultrasound and not sure of what it is they said since I had an apt with my ob that he would follow up but he did not even check anythibg im so worried he said hes not concernd because i see thr high risk Thursday