LOL - maybe try taking her nappy off, let her lay nakee, and grab her lil feet and bend her knees and push her legs up to her tummy (does that make sense?), and just keep doing that for a lil while...maybe she has some gas? I found this worked for Harriett and it works for Zoe as well...

Then there is always just giving her a baby massage....just to relax her

Worth a try