Nervous After Anatomy Ultrasound

Jodeci

Had my anatomy ultrasound today and Baby Girl was measuring small in some areas but overall she right on track for growth and on top of that she has something called Left Renal Fullness Growth where her left kidney is holding fluid but they said that's because they just started functioning. Either way I am freaking out. All my other pregnancies have been textbook. Any fellow mommies have an advice??