Increases in glucose levels with HG are a startup problem and that normalizes after a while. Certainly not a concern for HRT dosing. There probably is no data to be found for high dose GH. So you can report your numbers.
Because levels move a lot with meals, you need to do testing before you eat or do pre/post training shakes.
HG levels rise to assimilate proteins in your blood that peak well after a meal. This is a feeding response. You can inject GH at times when you have more amino acids available to drive them into muscle tissue.