I have been singing the praises of RaceReady Long Distance shorts for a while.
There are a lot of options these days, though. SpiBelt is a great product, and they have been a sponsor and supporter of promoting athletic activities for diabetics.
You may want to check out Diabetic Lifestyle Apparel. It is athletic wear for diabetics by diabetics. I'm a little self-conscious about skin tight shorts, though, so when I wear my diabetic lifestyle shorts, I feel like I need another pair of shorts over them, which defeats the purpose of the pockets.
What you want is something that holds a lot of stuff and doesn't let it bounce around while you're running.
For long runs and races, I carry energy gels, Power Gel, Clif Shots, Carb Boom, Accel, Hammer Gel, etc. for fuel, and glucose tablets for lows, two different kinds of carbs for two different purposes.
Hammer Gel advertises that its carbs are complex, so may be less likely to cause bg spikes, and Accel has some protein, which may help with that also. I think some of the others are adding protein now, too. It's hard to keep up with this stuff.
You may not need to start fueling during your runs until you get up to over 7 miles, but you might want to find out what tastes good and sits easy on your stomach now.