How long before you can reasonably say something is or is not doing anything?

Sorry for the basic question, but how do you actually start one of these diaries? Same for me with paying by card, unfortunately.

How do you tell the difference between the drug working and just a good week?

Sorry, probably obvious, but where do you even start with something blank?

Is a baseline blood test really necessary before starting something like this?

Do you contact the customs office or the carrier first?

Baseline first. Without a baseline the after picture is decoration.

Do you contact the customs office or the carrier first? Not on a fee on the statement but the pattern is familiar.