Knowledge hub

Connected definitions, not isolated pages.

These entity pages connect Zebra’s articles into one understandable map for people, search engines, and AI systems.

70 related articles

POTS

Heart rate rises sharply on standing, often with dizziness or palpitations. Zebra helps you keep a record of that pattern.

POTS Dysautonomia Symptom Tracking

70 related articles

Dysautonomia

A disorder of the autonomic nervous system, which runs automatic body processes such as heart rate and blood pressure.

Dysautonomia POTS Symptom Tracking

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EDS

Ehlers-Danlos syndromes are 13 heritable connective tissue conditions, with joint hypermobility common across types. Zebra helps keep overlap symptoms in one timeline.

EDS / hEDS Symptom Tracking Appointment Preparation

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Fibromyalgia

A long-lasting condition with pain all over the body, fatigue and other symptoms.

Fibromyalgia Symptom Tracking Appointment Preparation

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Long COVID

A chronic condition after a COVID-19 infection that lasts at least 3 months.

Long COVID ME/CFS Dysautonomia

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ME/CFS

A serious, often long-lasting illness that keeps people from their usual activities.

ME/CFS Long COVID Symptom Tracking

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Brain Fog

Symptoms that affect how you think, remember and concentrate.

Symptom Tracking Appointment Preparation ME/CFS

70 related articles

Fatigue

A feeling of weariness, tiredness or lack of energy.

fatigue Symptom Tracking Fibromyalgia

70 related articles

Dizziness

A word for two symptoms: lightheadedness or vertigo.

POTS Dysautonomia Long COVID

70 related articles

Orthostatic Intolerance

Symptoms that start when you sit up or stand and often ease when you lie down. Recording position helps.

POTS Dysautonomia Long COVID

70 related articles

Orthostatic Test

A guided way to record observations lying down, standing and while you recover, so position changes stay linked to the day.

POTS Dysautonomia Symptom Tracking

70 related articles

Doctor-Ready Report

A structured summary of patient-entered symptom history designed to make specialist appointments easier to review and discuss.

Doctor Reports Appointment Preparation Symptom Tracking

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Chronic Illness Appointment Prep

The planning work that turns scattered symptoms, questions, and medication history into a visit-ready summary.

Appointment Preparation Doctor Reports Symptom Tracking

70 related articles

hEDS

Hypermobile EDS causes widespread joint hypermobility, joint instability and chronic pain. There is no laboratory test for it yet.

EDS / hEDS Symptom Tracking Appointment Preparation

70 related articles

MCAS

Episodes in which mast cells release chemicals that cause symptoms such as flushing, hives, itching, headaches or stomach problems.

Dysautonomia Symptom Tracking

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Lightheadedness

A feeling that you might faint.

POTS Dysautonomia Long COVID

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Syncope

The medical name for fainting.

POTS Dysautonomia Symptom Tracking

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Tachycardia

A fast heart rate of more than 100 beats per minute at rest.

POTS Dysautonomia Symptom Tracking

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Palpitations

Heartbeats that feel pounding, fluttering or irregular.

POTS Dysautonomia Symptom Tracking

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Exercise Intolerance

A limited ability to do physical activity.

POTS Long COVID ME/CFS

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PEM

A worsening of symptoms after exertion, often 12 to 48 hours later.

ME/CFS Long COVID Symptom Tracking

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Orthostatic Hypotension

A drop in blood pressure on standing that can cause dizziness. Zebra helps you keep readings with their context.

Dysautonomia POTS Symptom Tracking

70 related articles

Orthostatic Tachycardia

A rise in heart rate when moving from lying down to standing.

POTS Dysautonomia Symptom Tracking

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Hydration

The fluids you drink across the day.

POTS Dysautonomia Symptom Tracking

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Salt Loading

More salt as part of a care plan. Not right for everyone.

POTS Dysautonomia Symptom Tracking

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Compression Garments

Tight-fitting socks, tights, leggings or abdominal binders.

POTS Dysautonomia Symptom Tracking

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Medication Tracking

What you take, when, at what dose, and what changed.

Symptom Tracking Appointment Preparation Doctor Reports

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Flare

A period when symptoms get worse than usual, then ease.

Symptom Tracking Appointment Preparation Fibromyalgia

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Baseline Symptoms

Your usual symptoms on a typical day.

Symptom Tracking Appointment Preparation

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Trigger

Something that often comes before symptoms get worse, such as heat, standing or a meal.

Symptom Tracking Doctor Reports

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Symptom Severity

How strong a symptom is, and what it cost you.

Symptom Tracking Doctor Reports

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Quality of Life

How you see your position in life, measured against your goals and values.

Symptom Tracking Appointment Preparation Fibromyalgia

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Activities of Daily Living

Everyday tasks such as eating, bathing, dressing and moving around.

Symptom Tracking Appointment Preparation ME/CFS

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Functional Impact

What symptoms actually changed in daily life, such as work, movement, driving, concentration, or routine tasks.

Symptom Tracking Appointment Preparation Doctor Reports

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Health History

The organized record of symptoms, routines, medication changes, and timeline context that helps appointments start from a clearer baseline.

Symptom Tracking Appointment Preparation Doctor Reports

70 related articles

Invisible Illness

A serious illness whose symptoms other people cannot see.

Symptom Tracking Appointment Preparation