Final answer:
Yes, Fletcher was nervous about entering Indian Territory as evidenced by his fear of being attacked and constant vigilance.
Step-by-step explanation:
In the "#Cowboy Document," Fletcher was indeed nervous about entering Indian Territory. One piece of evidence is that the document states that Fletcher is afraid of being attacked by the Indians. Another piece of evidence is that the document describes how Fletcher is constantly looking over his shoulder, afraid of being followed. These examples show that Fletcher had anxiety about entering Indian Territory.
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