Hi Artemis
Really sorry to hear what happened; I guess the problem for people without diabetes is that there's no way they can understand what it's like. Even so, you don't have to understand to give someone a hug, and I'm sending some virtual ones!
A couple of things: I wonder whether, having had the amount of exercise you did, and then continuing with errands and shopping, you never quite gave your muscles time to cool down completely, so your insulin uptake was still faster than usual. There's quite an interesting article at
http://www.gssiweb.org/Article/sse-90-diabetes-exercise-and-competitive-sports (sorry, new to this site and not got the hang of posting links yet!). I'm aware from my own experience that the effect of exercise can last for many hours.
I think the scariest thing is that feeling of not being able to rely on your own body. Despite having to monitor all the time, we take a lot of things for granted about how our bodies will just keep working and when it doesn't happen it's frightening. My worst experience of that wasn't to do with diabetes but the day my back just seized up altogether when I was in my very early twenties, ending up in hospital. Once I'd recovered I was fearful of going out alone in case it happened again, and that knocked my confidence for a while. I got over it and I'm sure you will, it just takes a little time and it sounds as if you're on track already. As far as diabetes is concerned, Type 1 for 30 years, only one hypo I couldn't deal with myself and I'm still mystified by the days when I do everything right and the readings are high or low - bodies are complicated!
I'd be interested to know what made you decide to use such a slow-acting bolus insulin; for me, the truly fast-acting insulins were revolutionary ad reduced errors and hypos. Still, if you're looking at a pump that would be a big help.
Good luck and there's lots of support for you out there!