I feel for you! I have days like that with my toddler, and he's an ONLY! 
When we were starting to consider when/whether to give DS a sibling, I came on here and read as many threads about this as I could find. One piece of advice kept repeating... Not only make time to have "special" one-on-one time with your older child, but make sure you also respond to the older child's demands first. The logic was that the newborn won't remember that you let him wait while you tended to his older brother. But the toddler will, and will resent the younger for it. They weren't saying to ignore your baby's needs, but that by the time the baby is old enough to realize that the delay is due to the other kid, they'll both be used to each other and it won't be a problem to make your older wait a bit this time and then have the younger wait a bit the next time...
Also, is there a way he can "help" with the baby? Like when the baby cries and needs a change, when your son shrieks, tell him you need him to stay calm b/c you need his help. Then ask him to hold the clean diaper for you, or get the wipes, or "stand right here to make sure the baby stays on the changing mat" or whatever). Same thing with anytime the baby cries. "Oh, he's crying for his blanket... Could you get it/help me find it so the baby can nurse?" Maybe if he feels like he's part of things and really helping, he'll be more excited and less freaked out when the baby cries.
I know it's hard to think about being alone with the toddler when he's been so demanding and difficult (all that freaking out would definitely freak ME out!), but I do think that will help him feel more secure in his place in the family.

When we were starting to consider when/whether to give DS a sibling, I came on here and read as many threads about this as I could find. One piece of advice kept repeating... Not only make time to have "special" one-on-one time with your older child, but make sure you also respond to the older child's demands first. The logic was that the newborn won't remember that you let him wait while you tended to his older brother. But the toddler will, and will resent the younger for it. They weren't saying to ignore your baby's needs, but that by the time the baby is old enough to realize that the delay is due to the other kid, they'll both be used to each other and it won't be a problem to make your older wait a bit this time and then have the younger wait a bit the next time...
Also, is there a way he can "help" with the baby? Like when the baby cries and needs a change, when your son shrieks, tell him you need him to stay calm b/c you need his help. Then ask him to hold the clean diaper for you, or get the wipes, or "stand right here to make sure the baby stays on the changing mat" or whatever). Same thing with anytime the baby cries. "Oh, he's crying for his blanket... Could you get it/help me find it so the baby can nurse?" Maybe if he feels like he's part of things and really helping, he'll be more excited and less freaked out when the baby cries.
I know it's hard to think about being alone with the toddler when he's been so demanding and difficult (all that freaking out would definitely freak ME out!), but I do think that will help him feel more secure in his place in the family.










s we've just been 'there'. My toddler did NOT do well when we bought his sister home. My suggestions (may have already been mentioned) are do things just for him, like it used to be. When we 1st bought Molly home I would still do his bath/bed routine as that is what had been happening all along. Even though I was super tired and sore (c-section) I handed DH the baby for 20 minutes and just went to be with him and play/read stories/put him to bed. I made sure I gave him lots of kisses and hugs etc even though, to be honest I really just wanted to lay down and be with the baby
I also made sure DH took him out to do 'man stuff'
like a trip to 'Lowes' 
