Was it the inner excitement or the physical exertion?

And when that happened his inner excitement grew until he could hardly control it.

Throughout the journey and long before, he had fought against betraying the inner excitement which filled him.

There: this must be it, she thought with a flush of inner excitement.

His eyes had that frozen look that indicated considerable inner excitement.

In spite of her simple clothes he thought she seemed like a great lady, aglow with beauty and an inner excitement.

He seemed to be fighting for control of great inner excitement.

Yet he kept remembering the pictures in the cube and his inner excitement grew.

As she turned quickly away from Mark, he thought he caught a glimpse of some new inner excitement in her eye.

He looked worn out and somewhat affected by an inner excitement.