I don't really know how to describe the sound, I guess it sounds a bit like flatulence but it's of course internal. I get these sounds whenever I am at school, always near my lower abdomen/groin area. This is accompanied by a sort of tightening feeling (or pressure) in that area, which subsides for a short amount of time after the rumbling occurs. I would say it occurs roughly 20 times whilst at school each day, with the tightening feeling present in between each occasion almost all of the time. I guess it sort of feels like there is gas trapped in there somewhere.
As I only get them at school, I wondered if it could be due to stress or anxiety of some sort? I have tried to find out if it is caused by a particular food that I eat but it occurs every day at school regardless or how much or what I eat. It is quite problematic and embarrassing for me as it is loud and discomforting, especially with the sound resembling that of flatulence.
If anyone has any experience with a similar issue or has any clue of what might be the cause, please let me know!