Self-consciousness, n.
The quality or state of being self-conscious.
Shades of meaning
Fernald has no entry of its own for self-consciousness; he lists it under egotism.
Where he writes about it:
Self-consciousness is the keeping of one's thoughts upon oneself, with the constant anxious question of what others will think. — from egotism
Vanity is an overweening admiration of self, craving equal admiration from others; self-consciousness is commonly painful to its possessor, vanity always a source of satisfaction, except as it fails to receive its supposed due. — from egotism