I completely empathize with your DD Victoria08 as I was almost "pushed over the edge" by my DD when she was a baby. Born 4 weeks early she was a very small baby, although her lungs were very powerful indeed. From the minute she was born until well after her 1st birthday she hardly ever stopped screaming. She was permanently red faced, hot, damp and snotty. She (and I) barely slept and fed very badly often spending hours taking a tiny bit formula, only to throw the whole lot back up again, in a fountain of what seemed like gallons more than what originally went in, putting us both back to the beginning. My poor son (who was five when she was born often asked if we could get rid of her or send her away) I found it very hard to love her and seriously felt that throwing her and me off a tall building might be the only way to escape.
Sometime just after her second birthday she had two small operations. One was to remove a piece of membrane in her throat that had not broke completely at birth (which probably explained the inability to feed properly and the fountains of sick) and the other was to put grommets into her ears (she always had inflamed ears and earache) and after that she seemed to turn a corner and eventually grew up into the most lovely little girl (she's almost 32 now) and although I wouldn't wish her (as a baby) on my worst enemy, its a good job she was the second child because if she had been my first (I was a single parent at 18) it is entirely possible that I may have done something quite terrible.
One of my biggest mistakes during my DD's first horrible 2 years was not taking every opportunity (however short a time) to grab a nap. Instead on the rare occasions she did close her eyes I used the time to do bloomin' housework ! What for? I was a zombie but I had a tidy house. What an idiot I was.
As others have said, these times do pass and things will get better (although I appreciate it doesn't feel like that at the time). What is important is that your DD should seize every opportunity to sleep and to take every offer of help that is made. I do hope things get better soon, Its so sad when you can't enjoy your own baby .
Wishing your DD lots of for the future.