Lu Lijun went through the history of each time when she got this attack in the past ten years. All the time she had it, it was close to the dates that were important to her, like Lu Qiangs birthday, their wedding day, the accident day etc. few other times she had it, Lu Lijun didn't know what kind of important days those were for her but he was sure they meant something. Might be the important times she had spent with his elder brother.
He was curious about after he returned from England when exactly she had these attacks. Lu Lijun went through her health history after the day he returned home. He checked the date when she got her first attack. Looking at the date he remembered what they did on that day.
"Wait, isn't it the day when we went to the farmhouse with the entire family?"
Lu Lijun was good with the numbers and so the dates. He could always remember what day and date he did something.