Thanks for your responses, and I've been thinking this over, and I think the issue is that I'm feeling a bit overwhelmed with all the attention she seems to need, so I withdraw from her, which makes her feel insecure/want more attention, and it just compounds itself. I'm trying really hard to spend some time playing with them rather than trying to get them to just play on their own, and doing stuff like sitting down and watching a TV show with her while having a cuddle - it's good for me to take some time to just sit, too!

She does know about the baby, and we're working on tasks that she can do... she also knows about soft and loud voices, and I think she's just impulsive and forgets herself! I think she's finally getting it that screaming at me for something doesn't work, because when she stands there whinging or screaming, I tell her I'll only listen if she talks nicely, and mostly, she's then toning it down a little and talking in a fairly normal voice. I feel a bit mean telling her I'm not listening (unless she talks nicely) but I also really hate being screamed at!

She's still full on, but I think that's just her A lot can happen in the next few months, right?!