I apologize for any confusion, but "I've Got A Tiger By The Tail" is actually a song originally performed by Buck Owens, not Sara Evans. Nonetheless, I can provide you with an explanation of the song's meaning and story. "I've Got A Tiger By The Tail" is a country song that metaphorically describes being in a challenging and intense relationship. The singer compares their partner to a tiger, symbolizing their wild and untamed nature. They initially thought their partner was gentle and would fulfill their dreams and plans. However, as the relationship progresses, they realize that their partner's fast-paced and unpredictable lifestyle is overwhelming and exhausting. The lyrics express the feeling of being dragged into a life of constant excitement and chaos. The singer feels helpless and unable to keep up with the partner's restless energy. They describe themselves as losing weight and growing pale, both physical manifestations of stress and exhaustion. By saying they have a "tiger by the tail," the singer acknowledges the powerful and unpredictable nature of their partner and the difficulties they face in trying to keep up with them. The song ultimately emphasizes the overwhelming nature of the relationship and the challenges it presents. Please note that Sara Evans may have performed a cover or rendition of the song, but the original version is by Buck Owens.