I have DC1 who turns 3 in July, we 2 weeks ago had another baby and it stems from there really.
DC1 stayed with my parents for 2 days while I was in hospital, DH went and spent lots of time explaining to him, playing with him, gift from baby ect just before I got home (he's quite a sharp kid, we've called my bump baby "x" from the start and he kissed my tummy every night).
So when I got home a day after, I kind of noticed an instant change in behaviour, he was more crazied I guess, my DM had noticed how wired he was. Its calmed down a bit but we are in an ever ending pattern of "no" to literally everything and well naughtiness.
For instance he has started climbing the ledge in our conservatory, he climbs DH desk and behind me or DH when we are feeding baby. We've explained calmly he could hurt himself but it's a massive game and he runs back unless I close the room off.
Second biggest issue is he's now biting us, or throwing things. He targets DH mostly, but bit me 4 times yesterday causing a bruise and DH today with teeth marks.
I know this is purely because of baby, he gets more jealous if DH has baby and wants to go potty if DH is changing baby or today he noticed me playing with baby and then he wanted the baby toys lying on my lap.
I just don't know how to deal with it, we started the "thinking cushion", so for the near killing himself and DH computer today, he got 2 minutes on his cushion in a quiet corner and he apologised, but then went and bit DH.
I've had to give up all breastfeeding because of this, its getting upsetting now as he is deep down a real sweet, caring little boy, I've never seen him like this he's almost insane for the last 3 hours of the day. First few days he wouldn't come near me, he always told me he loved me before bed but I hardly get kisses now.
If anyone can help with ideas on how to discipline this or deal with it, that would be lovely. As for activities too, I do crafts, hour in the garden, baking, all near every day but usually he's a kid that has time in nursery and spends the weekend with my family and his little cousin too.