Important: This article is general information, not medical advice. Virtual care is not appropriate for every concern. For a medical emergency, call 911 or go to the nearest emergency department.
General migraine information is not an individual assessment
MyHealth Alberta says a migraine can last from several hours to a few days without treatment. That general information cannot tell whether an individual headache is a migraine or determine a safe care setting.
A clinician considers the person’s history, symptoms, and other possible causes. An article cannot set an absence length, approve a note, or choose a treatment plan.
Keep emergency headache symptoms separate from paperwork
MyHealth Alberta directs people to call 911 for stroke signs or a sudden severe headache that is different from prior headaches. Do not wait for an online request or documentation question in a possible emergency.
Other concerning or changing symptoms may need prompt individual assessment. This page does not diagnose a headache or replace emergency care.
Work documentation focuses on relevant information
Alberta Human Rights Commission guidance says workplace medical information may relate to an absence, return date, or work-related restrictions and limitations. A diagnosis is generally not required except in limited circumstances.
An employer, school, or insurer has its own current process. This article does not decide whether a migraine-related absence or accommodation will be accepted.
Start with a reviewed request, not a promised result
For a non-emergency health concern, an AlbertaMD public request starts clinic review. The clinic reviews the request and contacts the person about the next step. It does not confirm an appointment, callback time, virtual visit, sick note, certificate, prescription, coverage, fee, or any other outcome.
For a medical emergency, call 911 or seek immediate emergency assessment instead of waiting for a documentation question or an online request.
Common patient questions.
Ready to start? For an eligible non-emergency concern, start your visit form when you are ready; the clinic reviews each request. Call 911 for an emergency or seek prompt professional assessment when a concern cannot wait.
Can a migraine duration set the length of a sick note?
No. General migraine information does not determine one person’s absence, clinical assessment, or documentation outcome.
Does a work note need to disclose a migraine diagnosis?
Alberta Human Rights Commission guidance says a diagnosis is generally not required except in limited circumstances. What is reasonably necessary depends on the work context.
When is a headache an emergency?
Call 911 for stroke signs or a sudden severe headache that differs from prior headaches. Do not wait for an online request in a possible emergency.
Continue with related Alberta guides.
These patient guides add context on virtual care, care navigation, and next-step preparation.
Learn more from Alberta resources.
These public resources offer additional context on virtual-care preparation, safety, and professional standards.
Ready to see a doctor?
Request a doctor call today.
For non-emergency health concerns only. For requests submitted during open hours, the clinic reviews each request and contacts you about the next step.