Tips for Colic?

Hendrix is 8 weeks old today.

Just after her 1 month appointment, she started to get fussy at nights. Well, it's gone on to now crying for 3 or 4 hours a night, every night. No one and nothing can calm her until she finally goes to sleep.

She sleeps amazing at night and only wakes up to feed 2 or 3 times.

She's also been gassy since birth. It never seemed to bother her too much until she hit about 5 weeks.

We've tried gripe water, mylicon gas drops, swaddling. She gets passed between me and her siblings. Basically, I'm holding, rocking, trying to feed and burp her until she stops. Usually around 9 or 10, she decides she's done and goes to sleep.

But, I'm not sure how to survive this for another month or two. It breaks my heart and I want my baby to feel better.

What have you done to help? We see the pediatrician next Tuesday.