Doctor trying to freak me out

So I'm technically a high risk pregnancy bc I'm overweight so whenever I have an ultrasound the high risk doctor comes in to discuss my ultrasound with me. Mind you, I'm 23 weeks have lost a pound instead of gaining anything and blood pressure is perfect no protein in urine etc. So I went in for my anatomy scan and they told me my baby boy has a thicker than normal nuchal fold and could possibly have downs. So obviously freaked out for a few days before we had our Tetra test results back and thankfully they came back normal. So I go back in 2 weeks later bc my boy was being uncooperative (go figure 😉) and we couldn't get good pictures of his heart during the anatomy scan and the doctor talks to me about my genetic test (tetra) she explains that the results came back normal and I express my relief and she just jumps back with well, the results are only 85% accurate. Umm okay way to burst my bubble. And then she asks me if I had any questions and I ask her if everything looked okay in his heart and she just comes back with well I guess, the resolution isn't great on you bc you're overweight. Ummmm okay. Then why the hell are we checking right now. I felt so much better after getting back my genetic tests and she just keeps tearing me down. Like I'm already freaked out about this pregnancy bc I've lost a baby before she's not really giving me any relief from my fears of something being wrong again. Am I just being sensitive or does she seem like a bitch bc honestly I'm dreading having more ultrasounds for the risk I may have her again. :/