Analyzing Emotional Urgency in Excerpt

In the following excerpt, the author uses specific language to convey a character's sense of urgency:

"With each ticking second, the weight of anticipation pressed heavily on his chest, the clock's relentless ticking syncing with the frantic beat of his heart. Every second seemed to stretch, and within that suspended moment, he could almost hear his own thoughts screaming at him to act."

Based on the context provided, which word best captures the intensity of the character's emotions as described in the passage?