# My knees are weak

This means that he is weak and it is difficult for him to stand. Alternate translation: "I have difficulty standing" or "My body is weak" (See: [[rc://en/ta/man/jit/figs-explicit]])

# from fasting

"because I am not eating any food"

# I am turning to skin and bones

This means that he has lost a lot of weight. Alternate translation: "my body has become very thin" (See: [[rc://en/ta/man/jit/figs-idiom]])