Tren and test should be keeping you quite full. It's gotta be your diet. When I diet someone down, I don't cut out too much food at once. For a lot of guys, I can add more food and with proper timing, get a client to lose fat with added cals. Muscle is never going to look as full as when you are dieting. Fluid retention is going to be lower. Still, you shouldnt be flat, a couple wks in. I would try to add more carbs and or fats back in, and see what it takes to feel fuller, while still losing body fat