POTS has tachycardia symptoms that could influence the severity of Adrenal Fatigue in those suffering from this condition.
What you need to know about POTS (Postural orthostatic tachycardia syndrome)
Inappropriate sinus tachycardia – Elevated heart rate and the vagus nerve – Caring Medical Florida
POTS: Tachycardia Symptoms Influence Adrenal Fatigue
Natural POTS Treatment (Postural Orthostatic Tachycardia)
POTS: Postural Orthostatic Tachycardia Syndrome : Paddy Kalish, OD: Optometrist
Article: Postural orthostatic tachycardia syndrome (POTS): a common but unfamiliar syndrome (full text) - January 2019 - NJM
POTS and Long COVID: A Dizzying Partnership
Postural Tachycardia Syndrome: Beyond Orthostatic Intolerance
Postural Orthostatic Tachycardia Syndrome: Symptoms, Causes, and Management, The Lifesciences Magazine