Neurotransmitter imbalances are associated with all of these groups, and many individuals experience a combination of symptoms that may span all three categories!
Exploration of the underlying biochemistry of these symptoms often leads to the identification of imbalances in two key neurotransmitters — serotonin and norepinephrine. A disruption in the balance of either, or both, of these neurotransmitters represents a common neurochemical shift that results in mood changes.