The bodily symptoms manifested by a devotee in expressing ecstatic love for Kṛṣṇa are called anubhāva. Practical examples of anubhāva are as follows: dancing, rolling on the ground, singing very loudly, stretching the body, crying loudly, yawning, breathing very heavily, neglecting the presence of others, drooling, laughing like a madman, wheeling the head and belching. When there is an extraordinary excess of ecstatic love, with all of these bodily symptoms manifested, one feels relieved transcendentally.

NoD 27: Symptoms of Ecstatic Love | Bhaktivedanta Vedabase Online http://bit.ly/2qOLL3A