When God prompts me with the right thing that I should be doing at that moment, too often I treat it like any other option that randomly pops into my head. But it's not random, it's purposeful. And it's not just any option, it's (by definition) the best thing, the right thing to do, because it's God's answer.
The counter question is what if it's not from God? What if it is just another option? Well, first, I started this thought on the assumption that you already know it's from God. Second, though, even if you're not sure, remember this: even when He's silent, God is present to everything that's happening within you, more present and more aware of all of it than you yourself are. So He's completely aware of this thought entering your mind. If you're like me, you need to deepen your obedience. So what you need is to practice obedience. As long as it's not clearly destructive, it's better to obey it (and practice in good faith obedience in the assumption that it is from God) than to not, and thereby reinforce autonomy, cynicism, and the like.