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]
(..) This is great. I actually know somebody who loves what they do. But what do you do to unwind after a tough day at work? Okay, we got the coleslaw and buns. The ground-up flesh of formerly cute cows and turkeys. I just love barbecuing with you. Men are here! We make fire. Cook meat. (..)1995 TvShow: Friends Title: The One Where Rachel Finds Out Season: 1 Episode 24