Sounds like there's a lot going on for her now and she's having a little spike in separation anxiety.
How are you going? Are you very busy with other things? Sometimes the best way to deal with this is to slow down and just spend some quiet, quality time with your baby. It really helps to reassure them and help them regain that equilibrium. You may find then that she's happier to do things on her own and less whingy - it's like they just need little top-ups of mummy-time.

I'm not sure about the pinching and hitting. I know DS still does that sort of thing at times, and it's usually with me. I think it's when he's particularly tired and/or frustrated about something - he needs a release and he feels safest to do it with me, i guess. Lucky me! He's more into kicking and headbutting though

Take care ~~