I was 'gassy' for a long time before I realised that I have become lactose intolerant.
It really drove me crazy.
You may become lactose intolerant as your get older.
Anything containing Simethicone wouldn't do much.
Try Beano. It may work.
lol i was at the girls place last nite... she was husslin me to leave cuz she had gas
... so i challenged her. course i won! ... muwhaha....*bubble bubble* ewww hehe, ...sounded a lil wet!