Yes I have my hands full for sure, I keep telling my mother I believe something is wrong with my son. She thinks he is fine but it is my son. And my mothers intuition. So I would know if something is off. But Thank you soo much i will surely get that checked. I sent this to the doctors forum but these adds end up every were. Thank you for your input of help.
I would look at sensory issues. My son has SPD and he was delayed speech like your son. He's six now and he speaks well. It took him until after age three to start to talk. But he had a hard time learning to sleep through the night. The drinks might be comforting to him-- oral gratification. Sometimes kids with sensory issues get rough with other kids and don't realize it. I would talk to your doctor and there are some books you can read. The out of Sync Child, Sensational kids are a couple that are really good. Also, there is some good stuff on the net about Sensory Processing disorder.
Sounds like you have your hands really full!!
Harmony, his behaviors sound more like they're in the autism spectrum than ADHD.
He also sounds like he could have some sensory issues, with the baby crying and whining.
Can you get him evaluated by an OT? I think that would be the first step to trying to help him.
BTW, this isn't a doctor's forum - but there is a doctor forum on this website. This is mostly a group of moms who are interested in child behavior.
Best wishes.