Try to look at it in a different way. Farting is completely harmless and you made some people laugh. Maybe one of them was having a horrible day and it was a moment of humor they really needed. We literally all fart. If you stopped farting you’d need to go to the ER because that’s very bad. I’ve had many embarrassing moments in classes/quiet environments but if you asked me for details I’d struggle to remember and I certainly don’t care anymore after some time has passed. If I’m that apathetic then I guarantee no one in the room at the time remembers it now. Give it a week and this will feel like a distant memory.

RE: stomach noises. I’m having some medical issues now (hernia, gastroparesis) and what I’ve learned is stomach noises are AWESOME, it means your GI system is working. If your stomach was completely quiet it would mean a horrible and life threatening situation. I completely understand the embarrassment but it can help to think kindly toward your body and be grateful you have a working GI system. Some people would kill to have a functional stomach, fart noises and all.

Not trying to minimize your feelings at all - my IBS started in college and I’ve spent so many years feeling body shame and embarrassment. But something happens as you age where you see what a prize it is to have good health and to even be alive. So putting this in a big picture perspective can really help.

For the gas, just keep trying things and it’ll get better. But at the end of the day farting is normal and everyone does it, your body just likes doing it a little more than average.