Stomach gas I thought would explode me!

Last night, after dinner, I suddenly developed sooooo much gas in my stomach. I burped and burped and burped, but nothing helped. I could hardly move or sit straight up it was so painful.
I took several GasX tabs, but they didn't help. Walking around didn't help. I am prone to upper GI gas, but NEVER has it been this bad. It felt like it was trapped in my stomach, and felt like I would explode. Finally, after several hours it felt a little better. But dang, I NEVER want this to happen again.
I did have a meal that had alot of cheese/dairy and also broccoli. But I've eaten these things before, and nothing like this happened.
Any ideas what the heck happened, and how can I avoid it again?
I felt like I wanted to stick a big needle into my stomach to "decompress" me.
I've recently increased my yogurt and probiotic pills, thinking my GI tract was off-balance.
Any insights?
Thanks!

Yes, avoid gas-producing foods! There are websites devoted to the lists and explanations.

Some of the gas is from swallowing air and also from foods and mainly drinks that have gas. This gives s gas in the stomach. If you've had a fundoplication this gas has nowhere to go but down, even if you are able to burp some of it.

Then comes the fun part. Gas in the lower intestine! The fun-loving bacteria get hold of the starches and sugars and make more gas. If you've eaten sulfur-containing foods they make stinky gas. If you've been constipated for a day or so you get explosive gas. Since the intestine has a great loop that comes up and across tust under the diaphragm sometimes it feels like a heart attack.

And probiotics and yogurg just contribute more bacteria.

In short, look up the gassy foods and understand how it works, and avoid those foods. Oh no! No bread!!