Pain and pressure in the back of the head sometimes it moves from one side to another I also have an impacted wisdom tooth and also taking, clonazepam and propalonol, for anxiety, when I touch the back of my head bones it hurts a bit it's bad?

Trigger point pain. The pain can be referred from the tooth. It can be specific areas of muscle spasm. Once tooth is better, if neck still bothered, consider trigger point injections into the muscle pain. It's not serious, just annoying.
Head pain. Please see your doctor and dentist. Get the wisdom tooth taken care of, rule out other medical conditions if doc does so. Please see clinical psychologist to learn strategies for dealing w/stress & anxiety. Peace and good health. Lots of reasons to be hopeful.