Yup. DD turns 1 tomorrow actually. She had been sleeping from 8/9 pm to 5 am and now she's up 2-3 times a night. She sits up in her crib 1/2 asleep but crying like she had a bad dream or something. If we leave her she cries. She screams, she flails. And we can't have her waking up the toddler in the middle of the night. So I bring her into bed and BF her. Usually I put her back in her pack n play and she goes back down. Other times I just keep her in the bed. I guess it's not ideal but it gets her back to sleep immediately. Obviously I'm tired of getting up with her but it's not the end of the world. AND it won't last forever.
Hopefully you can figure out something that works. Last night she went down at 7:45 p.m. and woke up at 11 pm (when I got into bed- I think she heard me) then she got up at 3 am and 6 am. Each time she wakes up just to BF. If I don't give her the boob she throws a fit. I'm sure I could try many other things but for now I give in.
Also she isn't napping great during the day and so we're working on that so she's not over-tired at night. And I moved her bed time earlier.
Good luck whatever you choose to do! I'm just hoping she grows out of this stage soon. I'm confident she will.