You have implicitly answered the question...and demonstrated the attitude that is the wrong answer.

When experienced people see something that doesn't fit, they often don't immediately know what subconscious cue let them know that something was wrong, and it is often someone else who can supply the critical piece of information. If you want good outcomes, you DO NOT push them to suppress their thought process. Instead you encourage them to speak up, everyone tries to figure it out, and then the final result helps train people's intuition of, "This is OK" and "This wasn't, you were right to wonder what about this situation reminded you of that case we saw last year where someone died."

If you are serious about finding problems, you need to not prematurely shut off feedback. Requiring people who think something doesn't look right to have backed that opinion up before they speak up is a problem.

Say I'm a medical student and during an operation I notice unusual numbers on the screen. I don't even know what the numbers mean (hey I'm a student!) but they look freaking unusual. Should I tell Dr. God about these numbers ? Last time he told me to shut up because I could not support my concern.

There are hundreds of situations where you believe something is a mistake but can't give clear supportive arguments. I hope blaming young medical professionals for raising their concerns in these situations is not the norm.

Because of feeling?

Our subconscious mind recognizes something and predicts a bad outcome, which gives us a feeling of something being wrong.

That's what expertise is essentially. Being able to offload things that took conscious effort before into the unconscious. So a bad feeling from an expert (subordinates are experts as well) should be voiced, and investigated.