Hello, thank you for visiting my blog. How are you today? I'm fine, but my son came home this afternoon because he had backache. He has been working for IT company as a systems engineer. Actually, at the end of last year, he had been carried to an emergency hospital from his work place by an ambulance for the severe backache. And he took a few medical examinations , but we couldn't know the reason of backache. However, fortunately, he got well soon. And this afternoon, I picked him up at the neighboring station and took him to a hospital. And he couldn't know the cause for backache today too. Um..., I wondered if the cause was lack of sleep because he slept hard in my car. Anyway, he seems to be getting better now.