ds who is 17wks pld was such a happy and contented baby. his eyes would light up everytime he saw me and he would give me a lovely smile even if he was extremely tired and sleepy.But since the last 2 days we have been trying controlled crying to help him nod off by himself.he is not happy at all and that look of adoration for me has disappeared!!do you thin he is cheesed off with me for letting him cry?