切り苛む

きりさいなむ【切り苛む】

hack sth to pieces; make mincemeat of…; torment with excruciating pain.

●娘の苦しみを思うと, この身が切りさいなまれる思いがする. Whenever I think about my daughter's sufferings, my own heart is torn to pieces [tormented by excruciating pain].