Interesting.
I've had trapped wind a few times. If it's caused by cold garlicky stuff (oh, gazpacho, I love it, it hates me) I feel nauseous, and faint, and sweaty, eventually violent stomach ache and I have to rush immediately to the loo, without passing Go etc - and fart violently, noisily and smelly-ly and instantly feel better.
On one other occasion I suddenly had constant, violent and sharp pain in my chest, I couldn't breathe, I was sweating, my heart was exploding - I was home alone and I did literally crawl to the phone and dial 999 cos I thought I was a goner, I crawled down the hall to let them in, crying profusely, they got me up onto the settee and we'd hardly exchanged two words when again, I farted. My BP was through the roof for nearly a hour, but I was fine.
Have no idea whatever what caused that.
My friend eventually went to the doctors with upper back pain.
Turned out to be gall stones !! 😱