Please help!! my baby is in serious pain!?

My 4 month old baby girl has a bad problem with gas. Weve tried different formulas, gave her gas drops, gripe water, burped her all the time, and even pushed her legs to her belly to try and get some out, but nothing seems to be working. Today its worse than its ever been and i have no idea what else i could try!! so if anyone has any tricks or suggestions, PLEASE let me know before she wakes up from her nap! thanks much, -signed, Worried mommy..