My interpretation was that she was awake and lucid Christmas eve, most probably had a c section and met the baby, sent the tweets. Then the next day or even that evening deteriorated and was put in an induced coma.It's not clear if she was in an induced coma, and has now woken up, or still is? (If so, who wrote the updates and why lie?).
There is some irony that she denied that she was 'struggling to breathe' a few weeks back. I’m sorry, but her weight has everything to do with this complication.
In any case, here's hoping for a speedy recovery for both her and her baby boy.
But you're right the message isn't perfectly clear in terms of the timeline of it all.