Yes it changes. Because you're not looking to change the feeling but noticing and loving the feeling. With that comes a shift. It doesn't have to stay the way it was either.
If you were looking to try and change the feeling, it won't change. It becomes harder and more stuck until you start appreciating the feeling.
Don't over analyse it. Just be aware from your experience that when you appreciate and love the feeling etc, it can and often does change to something more interesting (that's where you are reclaiming the power). Don't look to or try to change the feeling to something better.
You reclaim the power from the feeling by appreciating it and noticing it. That it's a feeling, until we label it. For example, anxiety and excitement often feels similar in body sensations however the labels hold us back or entice us forward. By taking your power back, by noticing your feeling without labelling them, you get new choices, What you may have labelled anxiety might just have been excitement all along but because of the label you pulled back where you could have been moving ahead.
Alex