https://heartwindow.co.uk 2026-09-09 daily 1.0 https://heartwindow.co.uk/assets/images/image01.jpg Hand drawn heart on window in condensation with sunrise shining through https://heartwindow.co.uk/assets/images/image02.jpg Me with rucksack outside hiking https://heartwindow.co.uk/assets/images/image03.jpg Me lying down looking a bit miserable https://heartwindow.co.uk/assets/images/image06.jpg Abstract painting of person holding another person's hand with colours around them https://heartwindow.co.uk/assets/images/gallery01/f2741176.jpg **1. Energy budget:** Your active-calorie budget for the day, based on Garmin data, with guidance on how long to rest if you go over it. https://heartwindow.co.uk/assets/images/gallery01/b8072acb.jpg **2. Daily score board:** At-a-glance scores for POTS severity, ME fatigue, weekly average, nervous system state, and PEM risk. https://heartwindow.co.uk/assets/images/gallery01/d1fd4983.jpg **3. Day planner:** Pick activities for your day, each showing predicted energy cost based on your past logs and today's heart rate scores. https://heartwindow.co.uk/assets/images/gallery01/0bf8aae5.jpg **4. Tools and activities:** Breathing exercises, practices, hobbies and more — filtered to what fits within today's energy and symptom limits, with links to resources. Tick to plan it; unticked later and it's added to your main calendar automatically. https://heartwindow.co.uk/assets/images/gallery01/81233bd5.jpg **5. Yesterday's Review:** How yesterday's pacing went, actual use vs. budget. Feeds into today's PEM risk, estimated from the last few days. https://heartwindow.co.uk/assets/images/gallery01/480d395a.jpg **6. Stress test reading:** A 90-second standing test each morning. Peak heart rate correlates closely enough with daily energy to help predict how the day will go. https://heartwindow.co.uk/assets/images/gallery01/fec0fa78.jpg **7. Trend Chart:** Active calories plotted against how well I felt, over time; a loose but clear trend used to set the daily budget. https://heartwindow.co.uk/assets/images/gallery01/55298705.jpg **8. Watchface tracker:** A adapted third party watchface showing your limits as bars that fill through the day; so you know at a glance when to rest or carry on.