feel in one's bones

feel sth in one's bones AND know sth in one's bones (to be certain that something is true, even though you have no proof and cannot explain why you are certain) — нутром чувствовать (=знать наверняка, предчувствовать с уверенностью)

Example: She he knew that something good was sure to happen; she could feel it in her bones.

Related vocabulary:
[gut feeling]