I Am Having A Lot Of Gas In My Bag,

I am having a lot of gas in my bag, especially at night. I'm aware of the "gas foods" and try to stay away from them as much as possible.
My doctor gave me some samples of Phazyme (180 mg). I take 2 tablets before bedtime. They don't work.
A company is sending me samples of "Diamonds Gelling and Ordor Control Sachets" I have read that they may not be reliable. We'll see.
Any suggestions? Thanks. GWA