Historical Examples. 1  What between the blow of the cougar and the force of the fall, the big-horn was dead. 2  Two Arrows wiped the blood of the cougar from the blade of his lance. 3  But now the hounds were too quick, and in a trice they had the cougar surrounded. 4  No cougar stalking its prey could have been more lithely wary.
SeveralPossibilities: Most cases of a twitching lip may be due to stress, fatigue, emotion, excessive caffeine intake or some deficiency in the diet such as potassium. Lip twitching in most cases is self-limiting, disappearing in minutes or maybe in a few days without any residual problems.
Symptoms of Lip Twitching. The symptoms of lip twitching are very evident. They can be felt as slight tremors which could radiate to the rest of your face as well. A person with lip twitching may also show the following symptoms: 1  Having involuntary or sudden contractions of your lip muscles. 2  Mild palpitation like movements especially on your upper lip. 3  A feeling of frozen lips or numbness. 4  A curling sensation of the edges of your lips.