By association with the hummingbird power animal, you may have already developed a strong adaptability and are typically quick to respond to any demand. You may also have a high sensibility and feel every nuances of emotions or movement in your environment.
Brought to the extreme, this ability may lead you to emotional instability as you shift rapidly from one feeling or mood to another without warning. The hummingbird totem wisdom could challenge you to figure out how to stand strong while being able to move quickly and fly high, whether it’s through your personal or spiritual aspirations.
From: http://www.spiritanimal.info/hummingbird-spirit-animal/