feel something in your bones
feel (something) in (one's) bones
To sense something strongly and intuitively. We all felt the truth of the situation in our bones. Something bad is going to happen tonight—I can feel it in my bones.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
feel something in your bones
If you say that you can feel something in your bones, you mean that you feel very strongly that you are right about something, although you cannot explain why. Joe, I have a hunch you're going to lose tonight. I just feel it in my bones. Note: Verbs such as know, believe, and sense are sometimes used instead of feel. No amount of argument can disguise what people across the country know in their bones. His departure is not just a sadness and a loss; it is potentially a crisis. Convention is very important — you'd think a conservative would know that in his bones. Note: You can also say that you have a feeling in your bones. I've got a feeling in my bones we're going to lose this by-election.
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012