Baby doesn't sleep

Anyone else have a 9 week old who doesn't nap? She was starting to get a good 5 hour night sleep in and then another 2 hour sleep... now i can barely get her to stay asleep for 2 hour stretches at night time and tskes me at least an hour of nursing if not more to get her to sleep again. She's also not going down so easily... she'll be asleep in my arma then as soon as i move her she tossea and turns and makes noise and won't settle.

Im tired and getting annoyed.