Dr.NephBHM_UK said:

It helps to say which part of this you are uncertain about.

Adding a me-too, because a thread of one person's experience is not much use. Nothing to add that would improve it.

BethLabQueen said:

One practical note: write down what you did and when, before you need it.

Correct as far as it goes. The part it does not cover is what to do when the honest answer is "not enough data", which is more often than anyone likes.

BethLabQueen said:

One practical note: write down what you did and when, before you need it.

Thank you for spelling out the reasoning rather than just the conclusion.

Adding the clinical framing, because it changes how the question reads. The useful move here is to separate what is established from what is widely repeated. Those two sets overlap less than the confident tone of most write-ups suggests, and the second set is where nearly all the disagreement on this board comes from.

Ask again with the specifics and you will get a better answer than this one.

Moderator note: reminder that nothing in this thread is medical advice, and that clinical claims need a source.