Soft markings of Down Syndrome found in CAS ultrasound,but the rest of the organs were normal

Hi Mga mamshie I’m 25wks pregnant,ask ko lng po kung na experience nio na sa CAS nio na may nkita na soft markings ng Down syndrome daw pero not 100% sure daw paglabas ni baby na gnun sya,may mga normal nman daw na pagka pnganak ok nman then meron din lumalabas na gnun pero not all.Thick din daw ang batok pro sbi fluid lng,dapat b kmi magpa 2nd opinion ng CAS?dapat b aq mag worry wla nman kmi lahi ng may Down syndrome po🥺