This is definitely true. My psych monitors my doses of two major meds carefully- which is easier now that I am HONEST with her about not drinking. We have not changed any dosage of those yet, but it will always be important to know they are the right dose, which means I need to communicate how I am feeling and doing, and trust her to be the expert. We have discontinued one med (antabuse) and are tapering another (lorazepam); again, for the latter, this is her directive based on how I am doing.
I get my thyroid tested regularly, every 3-4 months or so. We have adjusted the dose a few times since I have been taking it (3,4 years) and I have been both hypo and hyper. I will be particularly careful to have this checked during this first year of sobriety.
Being present (seeing) and being honest with our doctors about whatever is going on is the best way we can help them give us the best care.