what’s wrong and why aren’t they telling me?

Ashley
I just had my third “anatomy” scan this morning. They just kept saying they didn’t get all the measurements they needed. The second one they took a lot of time on her heart measuring but when I asked they said it looked great. Then today they also took a while on heart, cord, and livers. I asked how it looked and she said fine. She gave me a free sneak peak at 3D so I know she doesn’t have Down syndrome or anything I can see. But an hour after I left they called me and told me I need a fourth scan in less than 2 weeks, at a different center because they really want a doctor there. I asked the nurse why and she said she doesn’t know. No one is telling me anything, but I feel like soemthing is wrong. Are they allowed to withhold information? I’m really worried. Anyone have experience and how long did they measure hearts and so on? Please help me. 29 weeks 3 days. She was 3 lbs 2 oz today.
Update: they got to me and told me she has a lot of extra fluid in her lower tummy. Said they think it’s a uterine or bowel obstruction and want to watch it and see if it goes down. I don’t know why I’m just learning now but I’m glad I do.