Each one of these 4 neurotransmitters in this list is associated with a link that will take you further down the ADHD neuronal/glial communication path.
If you don't first consider, then measure for specific hormone imbalances you'll remain unconvinced that hormone fluctuations do often create significant ADHD symptoms.
Is someone trying to fool you with ADHD meds? Is that what you thought when meds didn't work as anticipated, and your ADHD recovery journey unexpectedly changed?
One of the many reasons so many deny ADHD as a biologically valid medical entity is the simple observation that too often the ADHD stimulant meds simply don't work predictably.