DS1 (3.0) was asleep an hour or so ago when he suddenly started shouting and coughing. He was shouting for me but when I went in to stroke his head he pushed me off. His eyes were open but he didn't answer when I spoke to him. He kept coughing and shouting and wailing for about 5 mins and then went back to sleep. I was worried he might be feverish but he didn't feel hot. Is this a night terror? It hasn't happened before