Hi Nic!
Sorry you're having a bad night a friend of mine sees a chinese hearbalist who says that you should avoid lettuce and tomato (among heaps of other things re: colic), so perhaps the salad is making her windy. I'm not sure what Gabe gets it from...
The only thing I can think of for you is to go to bed and sleep her on your front on her tummy, if that makes sense?