Yesterday I became sick.
Since I had a sore throat and a headache, I thought that I caught a cold.
Therefore, I went home early, ate dinner, and went to bed.
However, I woke up in the middle of the night due to a severe headache and a feeling of nausea, then I vomited all food I ate for dinner.
It was very painful because I woke up repeatedly with the headache and the nausea.
After I slept for about 18 hours, these symptoms were finally lessened somewhat.
However, my condition is still bad — in such a day, I will post a simple diary like this.