Hi, thanks everyone. My bb is better already. He has the same problem as most of you. He wakes up earlier now at 6:15 am and drinks less milk lately. Don't know if it is because he is not feeling well. However, in the hospital he can still finish the whole bottle.
Last night we have turned on the air-conditioner already in the living room, all my boys sleeps soundly. Maybe it is really because of the hot weather.
Update: My bb has four teeth now.
He can make ba, ma and up sound.
He can walk around by holding on to something. He can sit up by himself from lying position to sitting position.
He can pull up himself to standing position.