My son is a little over 3 months old and about 2 months ago I noticed he shakes his head like he’s saying “no” or he’ll shake it to the left. He can go days without doing it and some days it happens multiple times. I don’t have any family history of seizures but I’m just worried. It just happens randomly and I mentioned it to my family and his dad but they all think I’m just overthinking it. The other night his dad finally noticed it and asked about it and I told him that’s what I was taking about and he just stayed quiet. I have a doctors appointment for him next month but is this something I need to worry about?