First of all, let me describe the situation.
It mostly happens during heavy work sets (and as I’m currently close to breaking my pre-pandemic records, every training is my max effort), usually during squats, especially above 120 kg, when I’m really struggling with lifting (but still manage to finish the sets). Though sometimes it happens with heavy deadlifts as well, or power cleans. So to sum it up, it’s almost always when I’m bending in some way, but I do feel gassy sometimes during the presses, probably because the squats start it all. I thought the belt was the main factor, but as I’m finding it hard to squat with a belt on thus lifting beltless, the issue is still there.
That said, sometimes I train without any issue.
But if I was just gassy/bloated, I wouldn’t have complained. Sometimes there’s flatulence, sort of a short but loud sound that sounds like you’re ripping some fabric. No smell, it’s just loud. And I want to avoid that.
My diet, well, it’s not perfect, but I do try to eat lots of protein (usually from chicken, turkey and fish) with some sort of carbs (rice, potatoes etc.), combined with an odd protein shake, especially on training days. Before almost every workout, I eat oatmeal with milk and sugar, and if I have time, I have a cup of coffee afterwards. Every pre-workout breakfast is followed by a big dump - never leave home without it (to the gym, at least). I obviously do not eat lots of beans, eggs or cheese, especially prior to the workout. But more often than not, I feel bloated in general, because I’m overweight (96 kg, 175 cm) and my eating habits are something like “eat until you’re full, or until your (large) portion is finished”, for 2-3 times per day, not counting pre-workout breakfast (so usually lunch and dinner). There’s some junk food and the occasional beer once/twice a week, but nothing significant.
Out of the obvious “don’t eat so much all at once”, what are some things that would help me get rid of my issue in the short term?
Coach Tom (who deserves a raise!) told me not to believe any idiot on the interballs, and also suggested simethicone (which I have not yet tried).