It is a normal phase, but the boundaries ARE being pushed, and i would work hard now to get some ground back. With dd I tried to follow some natural consequences, so that if I was carrying her and she hit me, I plonked her straight on the ground. Then I would say, gentle hands only please, and stroke her hand and or get her to stroke mine, then I would pick her up again (and repeat if necessary). She was piffed out of bed many times at that age for hair pulling, and I would explain she could only be in our bed if she had gentle hands...it was the same if she misbehaved while sitting on the bench etc.

As for nappy changes, it's a pain, but normal. Again I used natural consequences, and would continue to get ready to go out etc, and say 'well mummys going so let me know when you're ready to get dressed etc'.

Sometimes I still have to muscle her into some clothes...it sucks but it passes.

As for the screaming when awake...is he still tired? Or does he need some chill time like tv or stories straight after waking up? Otherwise hunger?

Hth