Silas Eating

We aren't sure if Silas is having a seizure or not at the beginning of the video.  Right at the beginning  is the episode in question. There is another episode around 1:05.  He stares into space and clenches and then snaps right out of it.  This has been going on  for a couple weeks.  I have gotten a couple other videos of him doing the same thing as well.  He does this 10-20 times per day and we mostly notice it when he is playing or eating.