Practice until uncertainty becomes diagnosis instead of panic.

Uncertainty without expertise has no structure, so it becomes fear. With enough practice, the same not-knowing turns into a set of questions, likely causes, and next tests, which is diagnosis rather than panic. The uncertainty is identical, the response is completely different.

When you feel that rising alarm, force the questions. What is happening, what would explain it, what would rule it out. Structure applied deliberately eventually becomes structure applied automatically.