Menopause Rescue
Dr. Polly Watson
Mast Cell Activation Syndrome (MCAS): Symptoms, IBS, POTS & Why It’s Often Missed
SummaryIn this episode of Menopause Rescue, host Dr. Polly Watson welcomes Dr. Amy Doherty to explore Mast Cell Activation Syndrome (MCAS), a complex and often misunderstood condition that affects multiple body systems. The conversation highlights why patients—particularly midlife women—frequently face medical dismissal, often being told their diverse symptoms are psychological when they are actually physiological. The discussion clarifies that MCAS exists on a spectrum, where mast cells, which are essential parts of the immune system, become hypersensitive and overreact to triggers like histamine, stress, or environmental factors. The hosts explain the intricate connection between MCAS and conditions such as IBS, POTS, migraines, unexplained fatigue, and chronic pain. Key insights include the role of the unconscious nervous system in maintaining a constant "fight or flight" state, which can exacerbate immune dysfunction. Dr. Doherty outlines a comprehensive, multi-tiered approach to treatment, emphasizing a combination of trigger avoidance, pharmacological interventions like antihistamines, and body-based therapies to help the nervous system feel safe. By moving away from a siloed medical perspective and toward a systems-based approach, the episode offers listeners a roadmap to validating their experiences and reclaiming their health.
Updated Jun 25, 2026
About This Episode
Have you been told your symptoms are “normal” or “all in your head”? Do you struggle with IBS, migraines, dizziness, or unexplained inflammation that no one can connect? In this episode, Dr. Polly Watson sits down with Dr. Amy Doherty to unpack Mast Cell Activation Syndrome (MCAS) and why it’s finally gaining recognition in conventional medicine. Together, they explain how mast cells, histamine sensitivity, and nervous system overload can drive chronic symptoms—and what you can do about it.
🌸 Mast Cell Activation Syndrome exists on a spectrum and doesn’t always look like a dramatic allergic reaction. 🌸 Histamine receptors are found throughout the body, which is why MCAS can affect the gut, brain, heart, skin, and hormones. 🌸 Many patients with IBS, POTS, migraines, or chronic sinus issues may actually have underlying mast cell dysfunction. 🌸 Lab testing can be tricky, and clinical questionnaires are often more practical and accessible. 🌸 Treatment may include antihistamines, supplements like quercetin, dietary changes, and trigger avoidance. 🌸 Regulating the unconscious nervous system is one of the most powerful tools for calming immune overactivation. 🌸 Healing is not about “shame 2.0,” but about helping the body feel safe again.
If you’ve felt dismissed or confused by symptoms that cross multiple systems, this episode offers validation, science-based clarity, and practical next steps to help you move forward.
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