Gassy Baby

We are breastfeeding, with occasional breast milk bottles from dad (maybe one every other day?) My little one has been gassy since he’s been 3 weeks old. He’s 12 weeks old today, still gassy. It’s not as bad as it used to be but it’s definitely still bothering him to the point where it wakes him up at night and cries. We tried gas drops, tummy massages, bicycle legs, probiotic drops, and use the Windi when necessary. (Found the Windi and tummy massages/bicycle legs to be most useful.) We even switched bottles from Tommee Tippee to Dr. Brown’s. Any other mamas out there with the same problem? I feel like everyone I know said it went away for their babies pretty quickly but just seems like we’ve been struggling for so long. I hate seeing my little one in pain 😭 Any advice will be greatly appreciated!