There are two bags at the back of my head and above my neck (symmetrical left and right). I heard that they are anti-bones, right?

One is the material, which refers to the occipital bone, also known as the back bone. The protruding part above is called "brain spoon". A person has a protrusion behind his lower ear, which is called "complete bone". Some people's occipital protuberance has the basis of bone prevention. Looking at their heads from the side, they look like deliberately exaggerated question marks. At the same time, anti-bone can also refer to a person with a particularly prominent forehead, which is called frontal anti-bone, commonly known as "the head of a child" in folk;

The other is spiritual. In ancient feudal society, it refers to those pagans, unfaithful and unjust people with rebellious spirit. In fact, these statements seem to have accumulated historical wisdom, but many people know that this standard is unreliable. However, due to the influence of traditional culture, people tend to be religious or superstitious when they lack understanding of the nature of reality. They even used it as the basis for major choices.

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According to your description, if it is anti-bone, it should be material. But I haven't seen it, and I'm not sure if yours is really anti-bone or other diseases. You'd better go to the hospital for a careful examination.