我在收到信用卡账单整夜失眠的时候，原因是由于我没有追踪我的信用卡费用。
When I had sleepless nights over credit card bills it was because I wasn't tracking my expenses.
这个问题提得很好，失眠的原因有很多，我不知道确定的答案。
This is a very good question, and as there are a number of causes of insomnia, I can't give a definite answer.
不是，是我个人的原因。最近一段时间，我感觉压力很大。患了失眠还头疼。
No, it's all for personal reasons. I've been feeling too much pressure recently. I have insomnia and migraines.
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