preventative gas pains solution?

I'm a 34yr old male. I've had gas pains for as long as I can remember. Sometimes it's on the bottom of my belly. Sometimes on the top of my abdomen (below the rip cage). Lately its been getting worse. I had to quit eating broccoli because it would cause such severe pain for about 4 days. I've had an upper endoscopy done and they found nothing wrong. Said it was probably gastritis.

Last night I had popcorn at a movie theater. As I was walking home, I had such severe pain at the top right of my abdomen that I couldn't walk. It was terrible. It was even extremely tender to the touch. Took me like 30mins to walk home. I was only half a mile away. I live in NY. So lots of walking.

So My question is... Do any of you suffer from really bad gas pains? The kind that just stops you in your tracks? Have any of you found any preventative treatments for this? I like to eat healthy. I have lots of fruits and vegetables in my diet. I eat at least 5 variety of fruits everyday. I would like to continue eating healthy but I know this type of eating causes problems.

Any preventative solutions come to mind? Does taking Gas X everyday make sense? Is that bad for me? What about taking beano before every meal? Is that bad for me as well?

Any suggestions would be GREATLY appreciated.