Sleep...help!

This week has been hell in regards to nighttime sleep. My LO has been up at least 3 times a night (was sleeping through for the most part up until this week). Last night she slept through the night and I thought maybe we made it through this little patch. Tonight has been a different story. She went to bed just fine at 7:30pm and has been up every 30-40 minutes since. I'm at a loss on what to do. She's been acting fine all week (other then the sleep thing) and doesn't have a fever so I don't think she is sick. I dont know what to do. Letting her cry for more than 2 minutes isn't an option because she works herself up and makes herself throw up.

We have the same bedtime routine that we have had since 6 weeks. Naps (2 a day) are still the normal 30 minutes to an hour and a half long. I will mention that she has seemed extra hungry today so maybe a growth spurt...I don't know. She's 11 months tomorrow on the 11th.

Anyone else dealing with something similar? Anyone have any tips? I'm open to any and all suggestions.