Health Question) Digestion during dieting

I'm doing 16:8 intermittent fasting to lose weight.

It's been exactly a week now, and I can feel my stomach has shrunk.

It's not a diet that restricts meals, so I don't think it causes obsession.

However, it seems that the digestive ability is weakened.

Although I called it 16:8 intermittent fasting, it often becomes almost 20:4, so I tend to eat food in a short period of time, which seems to cause poor digestion.

Should I change my diet to be healthier in this situation to improve digestion?

I'm not binge eating or eating a lot, but I feel bloated until dinner, and I'm worried.