If you were involved in something really frightening, you may not feel well for a very long time. For example, you may have trouble sleeping, experience pain in your body, or get very scared sometimes. If this is the case, you can seek medical care. There is treatment that can help you.
It is quite common to feel bad after something frightening has happened. For example, you may feel scared and have trouble sleeping. This usually goes away on its own after some time. There are things you can do to make yourself feel better.