My son is 22 months old and I am extremely worried about him. This past week he has been acting very weird I didn't know what was wrong with him son on saturday I took him to his DR and she said he had an ear infection. I have him sleep in the same bed as I and earlier I noticed his muscles were twitching. One second his foot the next his hand then arms then legs and none-stop. I'm going to call tomorrow morning. But does anyone think they know what is the matter? He has been completely different in such a short time. He isn't talking much he just started drooling 2 days ago after months of not drooling. One minute he is normal the next minute he is not.