Water Weight After 21 Days?

This is my first experience with GH, and I’m using just 2iu each night before sleep. I started a calorie deficit at the same time. Typically, when I diet, I lose about 5-6 pounds in the first week, then 1-2 pounds weekly after that. However, this time, the scale hasn’t budged; my weight is exactly the same, but I definitely look different. How much water does GH actually retain? I appear leaner, but the scale isn’t moving. Should I reduce my sodium intake? Since I look good in the mirror, could it just be water or glycogen being pulled into my muscles? I’m not feeling bloated at all; my belt is looser, and I already see more vascularity in my arms. I didn’t think that just 2iu a day would have this kind of effect. To add more detail, my sleep quality has improved significantly since I started! By day four, I was waking up feeling much more refreshed, which is also boosting my gym performance. Better sleep leads to better workouts. Interestingly, on that fourth day, I saw a 3.5-pound increase on the scale, but I wasn’t bloated or anything. I returned to my starting weight just a couple of days later. I’m already at a 400-calorie deficit but don’t want to cut more until I understand better how GH impacts weight. I’m hoping you all can educate me. Should I reduce my calorie intake further? The scale isn’t my main concern, but I do need to lose fat, so it should be moving by now.