My Daughter Was Born Healthy. Absolutely Nothing Wrong With Her.

My daughter was born healthy. Absolutely nothing wrong with her. She was born January 11, 2016 I took her to her drs appt February 24. She received her Hep B vaccine. She was fussy all night. I laid her down for the last time at 6am. She passed away between 6a-830a from "SIDS" I found her cold, blue, bubbles coming out of her mouth and nose and a little bit of blood under her left nostril. Why the bubbles???? Would you be concerned that she received that vaccine less than 24 hours?? Maybe that was the cause??