You mean fart? Through exercise, the intestines can be accelerated, that is, the average person feels hungry through exercise. When you say uncomfortable, do you mean diarrhea or something?

There are many reasons for diarrhea, such as catching cold during exercise or exercising too much. Under normal circumstances, strength exercise will be controlled within one hour. Plus, it doesn't take that long for beginners to train strength every day.

I guess you just feel a little diarrhea during exercise. See if lactose will cause diarrhea.

Long-term strength training will generally only cause joint problems or hernias caused by improper exertion.

Intestinal discomfort is generally related to catching cold and eating something wrong.

Or exercise and then increase intestinal peristalsis, that is, accelerate digestion