@joannejacobs @Richard_Littler Yep I get a buzz about 2.5 km into a 5km walk. So good.
I used to get it doing fast bowling practice at cricket nets too. I miss that 😊
@Richard_Littler Same here. I think it's far more common than is widely discussed (and anecdotally, I think possibly more common amongst neurodivergent people than the general population).
It's something I do try to draw attention to as much as I can, because it can feel lonely and othering when all you hear is 'exercise makes everyone feel great!'. Believe me, you're not alone in this. Many people don't feel good as a result of exercise and no change to the exercising will alter that.
I believe a current neuroscientific school of thought is that those who get the good feelings, dopamine or whatever, do so because exercise inherently feels very uncomfortable - shortness of breath, increased heart rate, sweat, joint strain - and the hormonal system evolved to disguise that unpleasantness in order to ensure that bodies got what they needed. Similar to how, if you need a particular nutrient, then food containing that can taste fantastic.
But it's a spectrum, as these things always are, and some people get all the euphoric feelings, and some people (you, me) get absolutely nothing except the unshielded discomfort, and others fall somewhere in the middle.
@Richard_Littler it takes a while to get the positive effects. Few weeks of feeling sore and tired usually. Even then, maybe the activity is not for you.
I tried to take up running and always hated it and found it boring, even after giving it a good honest try.
Lifting weights worked for me. But first it was weeks of feeling weak, and being uncomfortable with the mirrors everywhere. Once results piled up there was no stopping me.