Hi
@Mitchsi , welcome to the forum.
Not the way anyone likes to end a holiday.
But wonderful to hear you seem to be taking it all in your stride!
It takes time to learn and experiment to find the correct doses for you (and the correct dose is likely to change over time as well), and even after many years we have no idea what caused a low or a high sometimes.
But mostly we do, and with time you'll get better and better knowing what your diabetes needs!
I think you already know most of this, but I'll give you the link anyway, there are some very good points in clear words here: