No need to appologise for being a fuss and as long as it is clear what you mean, don't worry about your spelling, mine is not brilliant either.
Try keeping a diary. Write down what you eat and when you eat. Also keep a note of when you sleep, how long for and how you felt before and after. A diary will help pin point any problems and show if there is a pattern.
If you are not sleeping well, that will affect how you feel, and you will feel more sleepy if you are having problems with your sleeping. Try to establish a relaxing bedtime routine, and have everything you need ready. The more relaxed you are at bed time, the better you sleep.
If possible (although not easy if you feel thirsty) try to avoid drinking too late. If I drink too close to bed time, I'm up a couple of times in the night. One of the reasons you need to pee a lot is your body is getting rid of the extra sugar in your system, then you feel thirsty to replace the lost fluids.
Keep talking to the nurse and to your doctor, and if you have a diary it will help them help you. Sometimes we have to persevere and keep telling them this is how we feel.
I hope you feel better soon, and keep an eye on things as someone else is sure to be along with more suggestions and ideas.