I could cry for your daughter - she sounds a lot like me when I was in my early 20's (girls are more mature than boys, so that works out about right! :wink: ). I've assumed (rightly or wrongly) from looking at the food she's eating, that she does have a weight problem It goes hand in hand with T2. The jury is still out on whether being overweight makes you more prone to developing T2, or if undiagnosed T2 leads to becoming overweight...
I completely understand her going into a bit of a slump and becoming a bit of a couch potato. High BG just makes you feel run down - you lose all of your get-up-and-go. She'll get her energy back if she can reduce her BG levels.
I'm sure you've picked it up by now, but she should really cut some of those carbs. Lo-carb T2's that are being treated with insulin often find that they can reduce their doses of insulin. This should only be done after thorough testing of her BG levels after different types of food. BE advised that your daughter should become an expert in her own treatment. One day she WILL know more than her GP about controlling HER diabetes.
The bottom line is this. Measure her blood before eating. Measure 1 hr after to see if the food she has eaten has had a big effect on her BG, and then measure after 2 hrs to check if her BG is falling back down.
Using this method, you can find out what foods have the biggest impact on her BG (I can tell you now, it'll be these foods: Chapatis, breakfast cereal (Rice Krispies are TERRIBLE), bread, pasta, potato, baked beans, rice, etc...)
Cutting out these foods, and replacing them with non-starchy vegetables, meat, cheese, berries, cream, eggs, fish, nuts/seeds (the list goes on! If you fancy a bit of reading try Bernstein or Atkins) she CAN lower her BG. When her BG starts to go down, she'll experience a wonderful side effect - the weight will start FALLING off of her.
What you do need to be aware of (and your doctor can advise you on this) is insulin requirements will go down when your carbohydrate intake goes down. Her doses at the moment will be based on the amount of carbohydrate she is eating at each meal. You need to beware of hypos when you are an insulin treated T2. It is not entirely unthinkable to believe that your daughter MAY be able to come off insulin and have her treatment changed to oral medication. Losing weight reduces your resistance to insulin. Your Dr. can advise you on this.
I hope this is not too daunting for you to take in - I know it's a lot. I had to learn everything the hard way, and I hope your daughter doesn't have to go down that long road.
I've got my fingers crossed for your daughter. I really hope it all works out.