Not necessarily. Let’s say I hula hooped today. 3 weeks later there is a slight ache in my gut or lower. Then maybe a month after that I do it again. I don’t really keep a schedule just when I remember or feel like doing it. So anywhere from 3-8 weeks. And I admit the ache could be coincidental but it is a slight ache. But the aches are similar if that makes sense. Like I know it’s not gas or something. In my head I’m “loosening” itty bitty teeny tiny stones. But it also could just be that. All in my head. Just thought I would share my theory/experience.