Stella, my boy also likes to be placed on my chest as I think he feels more secure that way. Ya, his poo also turned greenish & a bit less pasty & more moist ever since he came back from chalet, guess like u said, he is over stimulated & he got carried ard while he is at the chalet. When he came back from chalet, he is so hard to tame & so fussy, take long time to tame him. I got the rid wind from gynae. I tried spraying his nose while he is asleep & he got so angry but managed to get those mucus out, yellowish! I think must be the polluted air. I try not to let him sleep in air con room tonight & I think he can feed properly, last few nights, he kept fussing as I think he has difficulty breathing while drinking his milk, he got so angry & push the milk bottles away! Took long time for me to soothe him. Just manage to put him to sleep, he has been awake for 2 hours with his eyes wide open looking ard his environment but not crying & kept smiling . Weird! Must be angels talking to him?