That first public episode was quite severe. That cannot be unseen. I don’t even like Angela Merkel b/c of what she’s done to her German citizens immigration wise, but even I would be concerned as one human being to another. Perhaps smaller portions of sauerkraut and a lighter beer for Fruhstuck (breakfast) should be considered.
With the first case, you could suggest dehydration. This was indoors and I assume having some AC. She obviously knows that she has a problem and won’t discuss it in public.
For six months, there’s been chatter in Germany over the idea that she will resign after the three state elections in the fall (Sep/Oct), and with some cooperation via the SPD Party (the coalition party)...her party would just do a insider-vote and bring up a new Chancellor. Back in the fall of 2018 when this was suggested...AKK was the chosen one (personally by Merkel).