Health app on iPhone not showing any data since iOS 8.2?

I have got an iPhone 6+ and i'm currently on iOS 8.3. Since I updated to iOS 8.2 I have lost all the steps data that I had in the app.

now on iOS 8.3 it still does not show any data. But today I downloaded an app called "Pace" and in the beginning I got asked if it could access the Health App so I said Yes and the Pace app can show me my step information from the past 7 days. But still nothing in the Health app.

When I got to the sources tab in the Health app I'm meant to see all the apps that have access to it and there's nothing in the list.l No one app. The same happens when I try see what apps are linked in the Privacy settings on the phone but the list there's also empty.

Does anyone know what I can do to fix this. I really do not want to have to restore my phone because, even though that make let me see my future data, I do not want to loose my past data since January.

How could i make one of these? DIY

I want to make something like one of these for my iphone.

http://www.studioneat.com/products/glif

http://www.shoulderpod.com/shoulderpod-s1/

with just things from the hardware store.

any ideas?