<s>[INST] my son 17months and 5 days old. he wakes up crying every night few times, cannot make sense as he is not tired, he is not having night mare as he can see us talking to him, but screams out loud if we try to comforts him. he was not like this till April as he started doing it after we came back from overseas. [/INST] Hi dear,If recent onset after a travel, this may indicate some systemic infection going on,especially there is refusal to feed, nausea etc.Kindly see your doctor for evaluation .Take care.Thank you. </s>