出典:Wiktionary
病気になること
弱々しいこと
during my illness (=while I was ill)―in my illness (=when I was ill) [注意]“During”は「時」に重きを置き、“in”はその「状態」に重きを置く。
(病気中の状態に重きを置けば)when one is ill―in one's illness―(病気中の時に重きを置けば)―while one is ill―during one's illness.
the restraints of illness