@Ayesha I'm sorry to say that it sounds like your nurse isn't very knowledgeable Lantus is known for the fact that adjustments you make to the dose don't really start to take effect for two or three days, so changing it on a nightly basis according to what your levels happen to be before bed really won't work that well Have you ever been on a diabetes course, such as DAFNE, where you are taught to carb count, or are you just adjusting your diabetes according to what your nurse has told you? If you haven't been on a course, please ask about being put on one 🙂
Your lantus is supposed to deal with the trickle of glucose that your liver produces all the time to supply energy to your brain, heart etc. when you are not eating - adjusting it as you have been told will have an effect on your levels all through the next day and make it harder to work out how much fast-acting insulin to take when you eat - you need to take the guesswork out of things as much as possible. How do you work out how much insulin to take with your meals?
I don't do carb counting neither do I take the fast acting insulin. My nurse basically said I can eat anything and everything as long as I adjust my lantus. I always thought the daphne course is for those who need to do carb counting so I don't think it would be helpful for me