The memory of all that blood was enough to 'make my flesh crawl/creep'. [=to make me feel disgusted, afraid, etc.]
I try to get up early and exercise, though sometimes 'the spirit is willing but the flesh is weak'.
pleasures of the 'flesh' [=physical pleasures, such as eating, drinking, and having sex]
(..) Come on! Hurry! What's the matter? Bah! Kevin! Dr. Nefario! You're back! In the flesh. Behold, the antidote. Come on. Let's finally put this horrible jelly to some good use. Ah! Ah! Hey, guys, come on! (..)2013 Despicable Me 2