The baby is almost 11 months old (has been capricious for about a mont…

The baby is almost 11 months old (has been capricious for about a month now, arching his back, crying, hitting hard with fists on the table when he's angry and even shaking). In general, it seems like a psychopath. The neurologist found everything normal. They prescribed magnesium. He just became so suddenly like this. He was always calm, quiet, I told everyone that my such a good obedient child. The baby is easy for me…. But now he’s such a demon… I don’t know what it could be… I immediately say teeth don’t come out. Has anyone had this? Maybe it’s one year crisis? In general, I don’t recognize my own child at