I've had this problem for 71 years. Didn't know what it was until a few years ago. By then I'd worked out mostly what works although sometimes I have a bad week or so and its awful. Eating soft foods, intermittent fasting, and eating enough fiber and drinking enough water. Chia seeds will help (but not consistently). I'm trying a teaspoon of coconut oil (the solid, organic, virgin, unrefined kind ONLY) after eating in the morning and then in the evening. Too soon to comment as I just completely emptied my system after a problem, via Dulcolax. I don't like Mirilax, which my doctor suggested 30 minutes after the Dulcolax. But I do take powdered high absorption magnesium and that works just as well, but it tastes so much better (mine is peach flavored), and it may be helping my magnesium levels as a side benefit.

Olive oil could also be used (I haven't tried it) but after reading any negatives on these, I chose to try coconut oil. I don't have any heart disease and I have low blood pressure and low cholesterol. I've read where you can safely consume up to 2 tablespoons a day unless you have known heart disease issues, so I'm probably okay.

I have memories as far back as I can remember concerning this issue. When I was younger, I used to find riding a bicycle every day, and floor exercises (where you are using your abdominals in some manner) right after eating (the very thing they tell normal people not to do) really helped. I drifted away from those when I got really busy with work but I might try it again sometime.

Small portions, having every other day with no solid food, eating soft foods and exercise would be what I would tell someone with this problem, but I'm not a doctor, so I'm just sharing what has worked for me (most of the time). Oh, and drink lots of water!