J. - I know that you don't want to hear this - but all the moms that have posted here are right. You gotta let her cry it out.
Your daughter knows EXACTLY what to do to get YOU to come to her. And it's working!
I had a VERY difficult time letting my son cry it out. It was stressing me out so much that I wasn't very pleasant to be around because I was tired and crabby. FINALLY, my husband and pediatrician convinced me that I HAD to let him cry it out and he would sleep through the night. It was hard.
After he was down for the night, I was NOT allowed to go into my son's room at all. My husband went in to do a quick console when he cried and lay him back down to bed. When my son realized that mom wasn't coming in and no food was offered, eventually the cries stopped.
It took 6 days for us. PURE HELL! I hated it. I couldn't stand it. I thought it was wrong to let this little person cry. But guess what? It stopped! On day seven, I SLEPT! AMEN!
Also, keep in mind that once you decide to do this - you have to stick to your guns. You can't "sort of" do it. It's all or nothing. And have your dh help!
You need sleep! Do it for yourself. We did and are soooooo thankful that we did it early on.
Do IT!!! And good luck!
D.