I can hear how worried you are, and that's completely understandable. This one really needs a proper sit-down chat with your doctor to go through what the absent nasal bone might mean and what the blood test results will show, so please don't sit with this worry alone. Once you get those results in a week, your doctor can give you the real picture and next steps, and that will help you feel less in the dark. Try to take it one day at a time til then.