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

What is the first thing you would read if you were starting from zero?

Following this because I am in the same place and have no idea what to ask at the appointment.

Changing prescriber does not reset anything, and people discover that the hard way.

What do you do about the fee? Do you just pay it?

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

Is it normal to feel worse before better? Nobody told me that.

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