Pj's Mom!
I'm right there with you! Sarah has always been gassy and would wake often with gas pains from the very beginning. Unfortunately no diet changes helped me.....pediatrician said..yeah, don't bother...if it's going to bother her, then it's going to bother her...just wait it out!
Here's what we did since my diet did not impact her gas...
--used Ovol drops after a feed
--used Gripe water on occasion
--used manzanilla oil rubbed on her tummy by her belly button...dr says it increases blood flow to that area and helps them expel the gas...seemed to be a miracle to us

--mostly she started having less gas when I changed the way I was BF'ing her. I tried to keep her upright when feeding and also to burp her more often and in between sides.
-my public health nurse/lactation consultant said that she used gripe water before feeds and Ovol after too as they work in different areas...one going in..and the other coming out..if you know what I mean

She's 9 months now and if she wakes due to gas, she fusses..moves around and then goes back to sleep...so no worries....it will all work out...eventually

Good luck!
Leanne