Based on the context and the answer, generate a question. 

Context: Sure , there were times when he was alone in a dark place and he would get a bit fearful himself , but he concluded it to be irrational fear . But this , this was different . This feeling he could n't shake off and every little noise caused him to look into it more then he should . He felt a weight in his heart and he did n't know what to make of it .

Answer:

There 's an intruder in the house .



What may be the reason for feeling a weight in his heart ?