Disease analysis: If this happens in the last month or two, it should be all right. Or maybe there is something wrong with the way you are holding the baby. For example, if the child has a soft spine, it is normal to lean backwards.

Suggestion: Many children are like this. Whether you are awake or asleep when you lie down, if you are awake, it should be normal. If you look up when you are asleep, you should see a doctor quickly.