I hate my DS's behaviour - help/advice please
So DS turned 2 in Feb. We had DD in April. DS has turned from a lovely little boy into a monster. Every day is a battle for every little thing.
We have a fairly strict routine in the morning. I have to or we would never be ready to go out the door. Milk, play, get dressed, play, breakfast, sunscreen, teeth, shoes. Every step is fought all the way (even play), from saying "no" to tantrums, running away, throwing things, hitting, simply ignoring me. Evenings is a similar story. He refuses to eat his dinner (even things he loves & used to ask for more of), throws things, tantrums. won't get undressed for bath or shower. Forget sitting on the toilet (he loved doing this & still does it at daycare but refuses at home). Until this week, he happily let me dress him after his bath but now that's a battle too :(
Every thing I read says we are doing the right things - setting boundaries, consistent discipline, not giving in, having routines, set bed & nap times.
I have some ideas of what could be the trouble but I'm just not sure where to start.
Jealousy - Maybe he's jealous of the time I spend with DD. He doesn't seem to have any particular problem with her. He wants to play with her & tries to help her. When I'm feeding he gets clingy to me. When I'm not BF, I try to pay as much attention to him as I can. I've tried to keep his routine the same. For example, pre-DD, first thing in the morning, he has a bottle & cuddle with me on the couch. This still happens most mornings but sometimes I can't if I'm BF but when DD's done, I put her down & give him a cuddle. I'm inclined to think this isn't the problem.
Tiredness - His sleep pattern hasn't changed but he seems incredibly tired by bed time. We are going to try an earlier bedtime this weekend to see if that helps.
Teething - He has been showing signs of teething for some time now but so far no new teeth. He's due to get his 2yo molars. Could this be changing his behaviour this much?
Boredom - We try to get him outside as often as possible. He has daycare 3 days a week which he loves.
Normal 2yo behaviour - I've not had a 2yo before so I have no idea if this is normal or extreme. But if it's normal - how on earth do you get through it???
Food additives or intolerance - DS has a pretty good diet but it's not completely free of processed foods. How do you find out if this is a problem? Is there a test that can be done?
Any help or advice or even your own experiences with your 2yo's would be appreciated. I want my sweet little boy back :(
TIA