如果是吃的 可能是前几天吃的吃饭会产生一天最大的肠胃蠕动~ 最近吃的那餐应该只是这个效果
https://reurl.cc/OA925DStimulated by stomach distension and colonic irritation, massmovements usually occur threeor four times a day, often during or immediately after meals. These strong waves, which can last up to 30 minutes