If you've been managing what feels like allergies for years (seasonal sneezing, food sensitivities, reactions to temperature or exercise) but nothing ever fully resolves, it might be more than allergies, or not even allergies at all. MCAS (mast cell activation syndrome) can look a lot like allergies, because it's driven by the same part of your immune system. But instead of merely reacting to pollen or pet dander, your mast cells are reacting too frequently or strongly to foods, stress, medications, even changes in temperature. If that pattern sounds familiar, my latest article breaks down what MCAS actually is and how to start making sense of your symptoms. |
