You could be describing Charlie! Suddenly hates the pram, will arch his back when I try to put him in. If I stop for a minute, he screams! Picks up stuff as we're walking around and will refuse to let go. About a week ago, he wouldn't let me put him down on the floor, and when I had him in my arms, he wouldn't let me sit down! So now I put him on the floor, let him have his tanty, and after 5 mins or so, he stops and goes and plays. But I can't do that in the shops, and it's driving me nutso. Doesn't help that when DH is around, he'll take Charlie out of the pram if he sooks!

I am so feeling your frustration!