Just that really. I have a 19 month old and now a ten week old too.
Baby was a month prem and spent 2 weeks In special care so not the easiest start.
Since he has been born, my relationship with ds1 has gone down the pan. I'm starting to get upset by it, which is perhaps stupid but I can't help it.
He only wants dh and screams when he leaves for work and asks for him all day. I'm embarrassed by this as I feel it reflects badly on me.
When I'm alone with him and the baby he can be a nightmare. He kicks me, hits me and bites me unless I'm giving him full attention- which largely I'm not as I'm feeding the baby etc.
I feel inadequate and like I'm not coping with this sometimes. In addition the baby has very bad wind and can scream for hours unless he is held or in a sling.
I'm trying to go out with them both but it's very restrictive due to their very different needs- so the toddler gets frustrated. I feel like I've lost the relationship I had with him. 
Argh.