Sleep, stress time and pulse oximeter notifications have disappeared from the ios app after 18 months of use...

I've had fenix 5x plus for 18 months, I took it to Garmin Greece to check the battery as it runs out much sooner now, and when I got it back (having to cope with lower battery capacity after only 18 months...) the notifications re sleep, stress time and pulse oximeter had disappeared from the ios app, I even deleted and re-installed the app, but to no effect... now I can only see the activities, steps, floors, calories and hydration... any ideas more than welcome...