You still seem to be taking it for granted that being surveilled is inevitable.
Likewise, I assume that every sufficiently important person is targeted with some form of surveillance by at least one organised criminal gang interested in either taking their money or corruption, both of which can be achieved by surveillance-enabled blackmail. “Sufficiently” is variable depending on much this tech costs, and it’s constantly getting cheaper.
Likewise, the health assistant needs your health data, but doesn't need to share it.
The data should be stored on hardware you control, and not shared with anyone else.
Which is also what makes surveillance inevitable, as long as everyone is using Someone Else's Computer (the cloud).