UPDATE:Nvme Health decreasing now with 3% for 5 days

[lexluthermiester]

Interestingly enough in terms of timing, my 2nd (work) machine can't seem to decide on how much remaining life there is:

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It keeps fluctuating between 96% and 97%... curious as to how it can go back up - I mean seeing it decrease is expected, but not to increase. Obviously the lifetime number is derived from some other internal or SMART stats with some sort of formula spitting out a number.
The more annoying thing is that every time it changes I get a ping that it's changed... it's been reliable over many years but it is Sandforce controller so there is some paranoia - at least Kingston actually did push out what seems to be some of the latest Sandforce firmware for it so, fingers crossed, hopefully no weird bugs.

The drive life calculations are not an exactly measurement. They're an estimate base a number of variable factors that are generally, but not always, reliable indicators. A 1% fluctuation can be ignored. 2% starts getting iffy. 3% in short amount of time, there's likely a problem, but not always. 4% or more in a short time, there's a problem.