如果是吃的 可能是前幾天吃的吃飯會產生一天最大的腸胃蠕動~ 最近吃的那餐應該只是這個效果
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