I know no one can answer, but what's the most likely?
I was at A&E with my Mum last night, and let a distressed couple with a tiny baby go in front of me in the queue. Maybe 2/3 months old.
The baby was asleep in his Dad's arms, peaceful, but a bit too peaceful, not stirring at all. He had a good colour, not pale, quite the opposite in fact, looking almost suntanned. He didn't have a tan, but a slight orangy tinge iyswim.
Mum is a worry, she's still there, but I can't get this family out of my mind.