I think you’re on the right path with looking at these ‘invisible wifi’ feelings, @FrankN.
So long as enjoying & appreciating is reserved for the PCE walks (I like that btw, good idea), then ‘I’ am ultimately safe because I still get to keep being ‘me,’ and any PCEs or other enjoyable experiences stay restricted to those walks.
What you want, is for that sense of freedom & enjoyment that you experience on the walks to expand into other parts of your life. That means moving the baseline on emotion in all parts of life.
I think there are a couple of different ways of approaching this issue, both with their benefits.
The first is that, attentiveness inherently weakens emotion/self. ‘Self’ does not want to be seen; it wants you to act. By not acting, and instead activating the greatest degree of fascinated interest you can in those moments, several interesting things happen: for the first time you get to see exactly what emotion/self consists of, giving you an opportunity to connect some interesting dots. And, with the fascinated attentiveness engaged, the emotion cannot last long. Just by watching it, neither expressing nor repressing, the emotion goes away pretty quickly.
The second would be dropping the emotion on purpose, getting back to feeling good (or neutral) using whatever method you can, and investigating it ‘from the outside’ via attentiveness, identify the trigger, sincere interest, and using your appraisal to determine the best way to be / thing to do in future similar situations.
I think that both of these are valid investigation and compliment eachother, perhaps a good way to go about it is try one or the other, whichever is most interesting to you at the moment, maybe even do the first and then the second directly after! And keep an eye on how it’s working, do more if you’re having success, make some tweaks or try again if not.
This is also a very relative game we’re playing here, and as more and more work is done and successes had, you will get better at it and gain greater and greater confidence.
For my own part, in the several years I have even had panic attacks where I now just watch what’s happening, watch my body and psyche do weird things, but there’s such a degree of interest and fascination occurring that I’m quite unbothered by the experience - in fact, I’ve benefitted from it because I just got an invaluable glimpse into ‘me’ at core.
It’s just another thing to enjoy, really… very strange!