pesterment (n.)

"act of pestering; state of being pestered," 1590s, from pester + -ment.

She cries, 'Don't thee trouble thyself, Neighbour: Let them play a little; I'll put all to rights myself before I go.' But Things are never so put to rights, but that I find a great deal of Work to do after they are gone. Thus, Sir, I have all the Trouble and Pesterment of Children, without the pleasure of—calling them my own .... [Ben Franklin, "The Busy-Body," Feb. 25, 1728 (29)]