Great thing to sort in week one. Save the emergency number AND the non-emergency medical line in your phone the day you arrive — the second one is what you actually need for the 'worrying but not 999' situations.
I realised in a slightly scary moment that I didn't even know the right number to call, let alone what would happen or whether I'd be understood. Thankfully it was minor. But it made me think everyone should sort this in week one. What's the emergency setup where you are, and is there an English option?