[corwin]

911 is the way to go.
Yes you can pass out but you shouldn't worry about it too much because being so newly diagnosed you'll feel terrible long before dangerous levels, it's more of a problem later on, assuming you don't do something really wrong.
What I made sure everybody around me knows is that if I pass out NEVER inject me with insulin. I read few horror stories about people doing that and causing permanent damage.
There is also something called glucogen that people can inject you with, it stimulates the liver to put more sugar into the blood stream. You might want to get it and teach people you spend a lot of time with how to use it. Up to you, I never got it, I hope I won't regret it.