I only really suffered with it during the last few weeks and would have to drink something fizzy like coke to make me burp lol I also suffered terribly with heartburn and drank Gaviscon by the gallon!
Try Gaviscon, if it works you can get it free on prescription.
Check out Indian Brandy from health food shops, works a treat for trapped wind which is lower down in your guts. Not sure of the alcohol content (if any) but am sure it is minimal.
I am nearly 14 weeks and i have been suffering from it badly last couple of weeks, especially at night i wake up and its really painful so keeps me awake. I have started doing Yoga at home which really helps and am starting a class next week, i was told to wait until 14 weeks before starting. I also find that going for a walk really helps too.