Yours is Taste. Your body knows a thing by taking a little of it in. This is a way of knowing rather than a comment on your palate at dinner, though food is where it shows up most obviously. You need to sample something before you can tell whether it is right for you: the flavour of a person once you have actually spent time with them, the feel of a job once you have done a week of it, the aftertaste a conversation leaves behind. A description of a thing tells you almost nothing. A small direct taste of it tells you everything.
This is a discerning sense, and it is precise. Once you have had real contact with something, you know your likes and dislikes with unusual clarity, and you are rarely wrong about them. The old phrase about something leaving a bad taste in your mouth is close to literal for you. When a deal, a person, or a plan sits badly afterwards, that aftertaste is accurate information, not squeamishness. When something tastes good, your body is telling you to go further in.
The trap is committing before you have tasted. The world rewards people who decide fast and sound certain, so you can get pushed into declaring on things you have never actually sampled, and that is reliably where you go wrong. Not knowing yet is not indecision in you. It is your deepest sense doing its job, holding the question open until you have had a genuine mouthful of the thing in question.
So give yourself the sample. Take the trial, the visit, the first small bite of a commitment before you sign up for the whole meal. Slow the moment of intake down enough to actually register the flavour: eat without rushing, meet a person more than once, test a decision at small scale before you scale it up. When you let yourself taste first and decide second, your discernment becomes remarkably reliable, and you stop mistaking a good description for a good thing.