Halsey reveals she's suffering from FOUR syndromes and is 'allergic to everything' before her tour

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On Tuesday, three-time Grammy nominee Halsey revealed she's suffering from four different health conditions - Ehlers-Danlos syndrome, Sjögren's syndrome, Mast Cell Activation syndrome, and Postural Orthostatic Tachycardia.Ehlers-Danlos syndrome is a group of 13 hereditary disorders of connective tissue that affect your connective tissues - primarily your skin, joints, and blood vessel walls.

Symptoms include pain, fatigue, overly flexible joints, and fragile/stretchy skin.Sjögren's syndrome is a systemic autoimmune disease that causes extensive dryness and can cause fatigue, chronic pain, dysfunction of organs, neuropathies, and lymphomas. 'I'm on a treatment plan right now': On Tuesday, three-time Grammy nominee Halsey revealed she's suffering from four different health conditions - Ehlers-Danlos syndrome, Sjögren's syndrome, Mast Cell Activation syndrome, and Postural Orthostatic TachycardiaMast Cell Activation syndrome is a condition that causes increased risk of suffering Anaphylaxis (a potentially life-threatening allergic reaction).Postural Orthostatic Tachycardia is a disorder where most of your blood stays in your lower body when you stand up, and in response, your heart rate jumps and your blood pressure lowers.

The 27-year-old biracial pop star's dramatic diagnosis came after she was hospitalized with Anaphylaxis 'a few times' and saw '100K doctors' to help uncover the cause of her chronic illness.'Obviously, my health has changed a lot since I got pregnant and gave birth and I started getting really, really, really sick.

I've been kind of sick pretty much my whole adult life, but it started getting bad,' Halsey - who boasts 68.7M social media followers - admitted via Instastory. 'I know you're seeing the heart.