1721 C. Cibber iii. 51 Poor Lady! she is a little apt to be over-concern'd for her Poetry.
1941 50 2 You are under-concerned about the cases which don't trouble you at the moment, and over-concerned about the one that is striking you at the moment.
1995 9 Oct. i. 12/4 ‘Nesh’—a word which..means being cowardly, timid or over-concerned with personal comfort.