Finally got through and got my answers.
Melyssa had started a cold this week, and the recent massive fluctuations of temperate the last couple of days (heck, +20C to +5C is HUGE), had an obvious impact on her. Thus, this morning, after what sounded to her mother like bronchial coughing got bad enough quickly that she called the ambulance.
Melyssa’s reacted very positively to the treatment and is in excellent spirits (although somewhat doped up and massively chatterbox-y) and should hopefully be going home today.
And that’s it.