Working Apple Health App

Hi Ipluk,

Welcome to the Apple Support Communities. I understand you're missing some historical data from the Health app on your iOS device.

Have you made any changes to the data sources in the Health app? You can check using this guidance from the article titled Manage Health data on your iPhone, iPod touch, or Apple Watch:

"View your data sources

Here's how to see which sources update data for specific Health categories:

1. Open the Health app and tap the Health Data tab.
2. Tap a category, like Activity. If you don't see the category, swipe down to reveal the search bar, then enter a category.
3. Tap a data type, like Steps.
4. Tap Data Sources & Access. Only the sources that contribute to that data type will appear. 

Here's how to see all of your sources:

1. Open the Health app and tap the Sources tab. 
2. Tap an app or device. 
3. Choose categories that you want the source to access or update in the Health app."

To look at a few other possibilities, do you have Health turned on in your iCloud settings? This can be found under Settings > [your name] > iCloud > Health.

Also, which iOS version are you using under Settings > General > About?

I hope this helps get you started.

Cheers.