Based on the given context, craft a common-sense question, especially those that are LONG, INTERESTING, and COMPLEX. The goal is to write questions that are easy for humans and hard for AI machines! To create such questions, here are some suggestions: A. What may (or may not) be the plausible reason for an event? B. What may (or may not) happen before (or after, or during) an event? C. What may (or may not) be a plausible fact about someone (or something)? D. What may (or may not) happen if an event happens (or did not happen)? You can also create other types of questions. DO NOT make your question answerable without looking at the context, or question of which the correct answer can be directly extracted from the context. DO NOT ask a question that requires very specialized knowledge that is not common sense. DO NOT ask too simple or too short questions. Your question must be related to the context and answerable with common sense. Try to add more variations and complexity to the questions.

Context: The worst part is I slept on my stomach in some really weird position with my hands squished up under my ribcage , so I had this awful aching feeling under my chest above my tum tum . This made my morning sit ups totally impossible . I did about five and chucked that idea completely . Needless to say I feel like a big dumpy tub of lard today .
What may have caused the aching feeling under your chest ?

Context: Other than my sister being a complete psycho and keeping me laughing , I ' ve been exhausted and working all the time . I ' m fine though . Definitely worth the money . That will go no where except to paying bills .
What may be a valid fact about me ?

Context: I was with a big smile when I tried to go sleep . But the excitement that I already have Acer Aspire One kept me awake . I tried different ways to fall asleep , but I could n't .

Why ca n't the speaker go to sleep ?