Fatigue's really common, especially the weeks right after a dose increase. A couple things worth ruling out on top of your current routine:
Make sure you're getting enough total calories, it's surprisingly easy to eat way less than you realize on this medication even when a meal feels like a full portion. Suppressed hunger can mask exactly how low your intake's actually fallen. Fatigue's often one of the earliest signs of under-fueling.
Worth getting iron and B12 checked too if that hasn't happened, running low on protein and overall intake over time tends to accelerate those deficiencies.
What helped me personally was actually logging meals through a nutrition-tracking app instead of estimating. Even when I assumed my intake was fine, the numbers showed I was consistently coming up short on both protein grams and overall energy. Snap a photo for a rough estimate, scan barcodes, and it had built-in coaching that helped me recalibrate my targets. Genuinely useful when appetite cues aren't reliable anymore. That fatigue usually improves once your body settles into the new amount, hang in there!