Leap 6 of wonder weeks

Anyone else having a hard time with leap 6. My baby boy had always been the most smiley, sweetest, curious little baby, but for the last couple of weeks he is a nightmare! He screams the moment I leave him alone and cries until I pick him up again, throws his toys or just chews on anythng his hand can grab, no curiosity to explore things any more. He never liked tummy time, but now he hates even the idea of his belly touching the ground... One moment he is a little devil but the next he smiles and hugs me and I forget everything 😍