Do you contact the customs office or the carrier first?

Following this because I am in the same place and have no idea what to ask at the appointment. Six weeks in on chronic pain and it lines up.

Sorry for the basic question, but how do you actually start one of these diaries?

Stupid question: how do you know whether what is in the vial matches the label at all?

Same here.

Log dose, time and sleep. Ten seconds a day and it turns the anecdote into something you can look at.