He feels on edge, anxious, and hyper aware of things. It’s doing him no good, and he knows what’s wrong. But his eyes shift to Prompto, then to Ignis. No doubt the older knows, but if Noctis could avoid it-- he’s rather the blond didn’t find out. Noctis had suggested this hunt be handled by just himself and Galdio. Maybe it’s obvious on his face, there’s no real protest. But once far enough, the younger reached out and gripped his shield’s wrist tightly. It’s then that Noctis realizes he had been shaking.
It’s a part of him that he hides, he’s gotten very good at keeping the illusion. To keep his twisted looks, his damned horns and that tail suppressed. But Gladio knows, he knows all too well.
“I--” a pause, a breath, “I can’t hold it back, can we-- we’re far enough that no one will see.”