My best friend's baby girl was very fussy and had bad colic. She even would SCREAM every time she pooped, because she had such an upset tummy that it appeared as though she would have really bad gas and my friend could even feel it rumble through her tummy. They said that their saving grace was gripe water. I also remember getting gripe water as a child and I liked the taste. Is that something you could try?

Now Emily is 16mos and they still use gripe water, but they also found something called "Little Tummies" which is an acid reducer and they said that also really helps her out.

I hope you get some relief soon, sleep is very important!