A weather app used by over 1 million people every month! Also recommended for menstrual cycle management!
This weather app focuses on "meteorological illness," often caused by changes in atmospheric pressure due to weather-related changes, and focuses on headaches and other physiological pain. It's based on weather forecasts and barometric pressure forecasts designed by meteorologists.
Check the barometric pressure forecast graph along with the weather forecast to see when headaches are most likely to occur.

-----What is barometric pressure?-----
The weight of the air that presses down on you. It weighs a whopping 15 tons!
It changes dynamically every day and affects your health.

-----What you can do with Headache-ru (the weather app)-----
- Headache prediction: Predict headaches with the weather forecast, barometric pressure graph, and push notifications.
- National map: Check barometric pressure and weather forecasts for major cities across the country. Use it to prevent heatstroke and more.
- GPS Function: Automatically switch to your current location and check weather and barometric pressure forecasts.
- Pain & Medication Recording: Easily record the occurrence and intensity of pain (headaches, etc.), medication status, and medication names.
By keeping a history of your medications, you can check the relationship to your physical condition.
- Pain Note: Check trends with a list of records (even for those with autonomic nervous system disorders).
- AI Teach Me: By recording your headache (or other pain), AI will analyze the relationship between your pain and changes in barometric pressure caused by the weather.
- Period Recording: Record the start date of your period, manage your menstrual cycle, and predict your next period. You can check the relationship between weather and barometric pressure changes and your physical condition and menstrual cycle.

-----Recommended for:-----
"I want to choose a day when I can travel or have an important meeting, where I avoid headaches!" "If only I knew what triggered my headache... I could prepare myself mentally."
"I always feel unwell on rainy mornings..."
"I've been bedridden on typhoon days."
"I want to keep track of the health of my family, pets, and loved ones."
"I want to track not only my headaches, but also my period."
(Also useful for those with cerebrospinal fluid hypovolemia, fibromyalgia, migraines, depression, insomnia, sleep deprivation, rheumatism, stiff shoulders, joint pain or old injuries, and autonomic nervous system disorders.)

-----Features Added with Premium Service Membership-----
- Everyone's Pain Now: See how many other people are feeling unwell besides you.
- Pain Calendar: See your recorded days at a glance in the calendar view.
- Monthly Pain Report: Identify trends with monthly summaries of "headache" and other pain symptoms, including frequency, medication, and recorded time.
- Regional Map: Check barometric pressure and weather forecasts for each prefecture.
- My Notifications: Receive push notifications when a drop in barometric pressure is predicted due to worsening weather conditions at your registered location today or tomorrow.
- Recording Period: Unlimited recording period, including access to past records.
- Medium-sized widget function
- Data Linking: Link with Fitbit to view health data such as sleep time and heart rate.
- Ad-Free: Ads for the barometric pressure graph and pain notes are hidden. The display area is expanded.

-----Headache-ru Feature Introduction-----
[Barometric Pressure Graph]
- View barometric pressure forecasts up to approximately 1.3 days in advance (10 days in advance with Premium) on a graph.
- An alert will appear on the graph if the barometric pressure drops significantly below normal.

[Recording Function]
- Record your physical condition and medication status in four levels in hourly increments, and enter notes.
- Medications are divided into over-the-counter and prescription medications, and you can record medication names. You can also register multiple medications at once.
- Record your menstrual start date, manage your menstrual cycle, and predict your next period.

[Pain Note]
- View your logged data in a list.
- Display weather, barometric pressure, and other data for the recorded time.

[Teach Me AI]
- Record your discomfort and let AI analyze the relationship between your pain and barometric pressure changes.
- Use the analysis results to identify patterns that may be causing your discomfort.
- Recording more data will improve the accuracy of the analysis.

[PetVoice Device Integration]
- Walking Log: Measure the route and distance of your dog's walks and display them in detail in Headache-L.
*Only available for those who have registered their dog as their breed on PetVoice.

[Other]
- National Map: View barometric pressure, weather, temperature, maximum wind speed, and minimum humidity for major cities nationwide for the day after tomorrow.
- Headache Alert Push Notification: Receive a push notification when a drop in barometric pressure is predicted that could cause a headache.
- Location Registration: Register locations by city, ward, town, or village (weather forecasts are available for approximately 1,900 locations nationwide!)
- Privacy Settings: Toggle display/hide location information, menstruation, pain, medication records, and notes from the barometric pressure graph and national map.
- Headache-Ru Column: ・Characters explain barometric pressure and headaches in an easy-to-understand manner!
- Weather Characters: ・Dr. Owl, Maro, and the mysterious Teru Teru Cat. These adorable characters have secret stories!?
- Please be sure to check the Help & Terms, FAQ, Data Handling, Terms of Use, and Terms of Use before using the app.

-----Features Added with Headache-Ru Premium Family Care Membership-----
- All Premium Service Features
- Added account functionality that allows you to individually manage your family's health along with the weather. Up to three accounts can be added.

-----Features added with Headache-ru Premium Family Care+ membership-----
- All Premium service features
- All Headache-ru Premium Family Care features. The number of accounts that can be added has increased to seven.
- Added dedicated pain tracking for pets. The tip function makes daily records easy.

-----Inquiries-----
- Frequently Asked Questions
https://zutool.jp/app/faq.html

- Premium Service Terms of Use
https://www.otenki.com/app_android_tos.htm

- Privacy Policy
https://h-medtech.com/privacy-policy

- If you have any other issues, please contact us at the email address below:
zutool-info@h-medtech.com

References
Kenneth J. Mukamal, MD, Gregory A. Wellenius, ScD, Helen H. Suh, ScD, and Murray A. Mittleman, MD, DrPH (2009). Weather and air pollution as triggers of severe headaches. Neurology, 2009; 72: 922-927
International Headache Society "Kyoto Headache Declaration" (October 2005)
An Invitation to Headache Treatment - For Young Physicians and Medical Students - "In Primary Care Settings" Japanese Headache Society Website http://www.jhsnet.org/kensyui_sasoi.html (as of April 2013)

*This app is not intended for medical diagnosis or treatment. If you have any concerns about your health, please consult a medical institution.