Totally normal, Tia! A few of us tried everything din, different burping positions, waiting longer after feeds, pero ang truth is kahit na-burp sila well, ang babies natin pa rin ay may air pockets na lumalabas slowly throughout the day, kaya ang lungad after feeding ay super common talaga especially at 1 month pa lang. Try keeping baby upright for like 20-30 minutes after feeds if kaya mo, at walang pressure kung maglunga pa rin sya, as long as she's gaining weight and seems comfortable otherwise, you're doing great!