mrs ho
so sorry to hear that yur ger got food poisoning. i agree with the other mommies... how can blame the jar food?? so many days already. some more, jar food is sterilised leh.
sleep pattern
my boy also sleeping less soundly, though i'm lucky that he doesn't wake and start crying and crying. it's just that he doesn't sleep as soundly as before and sometimes would whimper in his sleep. sometimes he will go back to sleep, sometimes he will whimper and whimper until he starts crying. But we are usually able to soothe him back to sleep by rocking and patting for a while.
jumbo
you must try to put him to bed at a fixed time. for us, it's 9pm. When the clock strikes 9, we will bring him to the room, switch off the room light, switch on the night light and lullaby music, give him milk, then start patting him to sleep. when he's drowsy, put him in the cot and he'll sleep liao... you must create the atmosphere, he'll know it's bedtime. don't expect success in one or two nights, you must persist for maybe 2 weeks at least. good luck.