Have chronic anxiety disorder, have pain and tense feeling in temples which has brought panic attack and derislisation on, is this normal so scared?

Typical of anxiety: People are sometimes most afraid when there is no objective threat. If your experiences as you've described them stem from an anxiety disorder, the disorder itself is the problem and not something else--like a disease. A panic attack can include physical and psychological symptoms that can be terrifying (even though there is no real danger). Treatment is often very helpful. Keep practicing!

Yes and no: Yes this is not unexpected in anxiety disorders, but no, it is not normal. By your desciption, you are not receiving adequate treatment. Effective treatment will reduce your anxiety at least 50% if not more. Limited intrusio of untoward anxiety into your life.A combination of medication and learning stress management techniques will give you the ability to lead a 95% normal life.