| People managing recurring symptoms | Create a dependable history without repeating the story from memory | Energy and attention may change day to day | Short check-in, editable history and missing-day state |
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| People with chronic illness | Connect flares, fatigue and daily context over time | Many symptoms and treatments can make a dashboard unusable | Custom fields, low-energy mode and bounded pattern language |
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| Pain trackers | Record location, severity, timing and what helped | Pain scales are personal and are not a diagnosis | Labeled scale, body area, action and follow-up |
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| Migraine and headache trackers | Prepare a frequency, trigger and medication history | Weather and lifestyle associations can be mistaken for causes | Episode timeline, source count and correlation caveat |
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| Digestive-symptom trackers | Compare meals, bowel events and symptoms | Sensitive entries and food blame require care | Private diary, timing, editable foods and non-causal wording |
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| Medication-change monitors | Document symptoms before and after a dose change | The app must not advise starting, stopping or changing treatment | Exact time, prescribed change, response and professional boundary |
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| People preparing for appointments | Bring a concise dated record and useful questions | A polished report can look more certain than its inputs | Date range, check-in count, missing days, source and export |
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| Caregivers and families | Record observations for another person with consent | Identity, role, consent and disagreement are easy to hide | Profile, author, timestamp, permissions and revoke control |
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| Privacy-sensitive users | Know where intimate health notes go | Health, food, medication and cycle data can expose private context | Collection, retention, sharing, export and deletion controls |
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| Accessibility and cognitive-load-sensitive users | Log and review symptoms with limited energy, vision or concentration | Tiny charts, long taxonomies and color-only scales block use | Large labels, voice or one-tap input, contrast and correction |
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