[poodlebone]

Lantus is a background/basal insulin and if you're on the correct dose, skipping meals or eating more/less carbs at a meal or throughout the day shouldn't matter. For meals/carbs, it's the Novolog you have to think about.

You're using carb choices, which is another word for exchanges. That's the old way of figuring out insulin doses to match food. You should be carb counting - that is, counting the actual grams of carbs in your food and basing your insulin on that. Your bread choice is equal to approximately 15g of carbs. You might want bread, but what if the brand you buy has big slices that are 22g each? With carb counting, it doesn't matter. Just total all your carbs and base your insulin on that.

In order to carb count you'll need an Insulin:Carb ratio (I:C). Some people have a ratio of 1:10, or 1:13, or 1:25. It's different for everyone. You might be able to figure yours out based on your current carb consumption and insulin doses. So, if you have a 1:15 ratio and eat a meal with 52 grams of carb, that would be 3.47 units of insulin. You can't do that with a syringe or pen but you can approximate 3.5 units with a syringe. Some pens will also dose in 1/2 units. Otherwise you'll either have to add or remove carbs or take a little more or less insulin to match things as close as possible.

Is your doctor an endocrinologist? If so, he's doing a lousy job! If it's just a primary care doctor, find an endo. Better yet, see if you can find a CDE (certified diabetes educator) who is a nurse. They should really be able to set you up with the correct I:C ratio, correction factors and everything else.

You don't have to eat all of those carbs if you don't want to. You can skip meals if you're not hungry. You can eat junk food if you feel like it, but you should try to count the carbs, take insulin and test!