I am shocked to see how many of us have stomach issues!
Velo, I have several odd things going on, not all like your issue, but I have had one of those embarassing "I thought it was gas" incidents. At work, 10 years ago. Thankfully nobody was in the bathroom, and my office was right next to it. I had worn stockings as well as undies and thankfully it didn't go past the stockings (hiding that in the office trash???? OY!) and I found a way to get home ASAP. Horrifying.

I worked from home for many years, and the stress and late nights of my old occupation were killing my stomach, much like you describe. Who would have thought graphic design and marketing could be so brutal? Just try having a printer screw up a 200K job sometime. For those years, everything I saw online for IBS symptoms, I had.

Stress is huge for me. I've managed to reduce most of it to a very manageable level, but still have a few things that set off my stomach. No coffee. Ever. When I have it, my stomach knots up into a ROCK, it swells, it hurts from start to finish, I get reflux, and it takes 24 hours for everything to relax again. An unrelated issue for me with coffee is arrythmia, mix that with exercise and you get a very scary experience. For whatever reason, for me coffee is poison. Shame, because I love it so. I have decaf once in a great while, but it still gives me some of the above symptoms. I think it's the acid.

Stress, or going on vacation/visiting family means extra precautions. I bottle up. So I pack carrot juice and extra fruit, am super careful about what I eat, and get up early to relax enough to encourage movement. I have to do this "getting up early thing" anytime my routine is disturbed by something (company, added stress, a morning bike ride). Should all this prove ineffective, prune juice becomes my friend, but it also tears me apart along the way.

I'm still sorting out what my trigger foods are, because I also experience a lot of bloating. There are times you'd swear I was five months pregnant! It seems I may have a little gluten intolerance - barley and kasha are the worst, but pasta seems to be fine. I bake our bread & grind my own wheat, so I've been opting for amaranth and oats and making rice and bean flours instead. It's interesting and fun to experiment.

I'm vegetarian, I'm very careful to eat lots of fresh fruit and veggies, legumes, etc. I avoid dairy save for about three "cheats" I allow myself per month (cheese = lockdown. Dairy also causes several "female" issues for me, and at only 27, I had arthritis so bad some days I couldn't lift a pan. Got rid of cheese, I'm all good now - no arthritis and no doctors trying to diagnose endometriosis when it isn't there).

I've knocked out a lot of sugar, opting for stevia instead, and drink a lot of home-made herbal tea. I subsititute Teechino for coffee - it satisfies that craving and is alkalizing instead of acidic. Like Darcy, exercise is paramount. I've also started including a probiotic, but haven't been good about taking it every day. Noticing improvement though.