Dear Welcome to HCM We understand your concerns I went through your details. I suggest you not to worry much. I request you to go back a few days or months where you must have been stressed continuously for some time. The symptoms you are mentioning are mostly related to Post Traumatic Stress Disorder (PTSD) usually occurs to people who were stressed. But the symptom appears only when you do not sleep soundly, and this symptom is simply seems to be obsession. You are obsessed to such a condition and that is the reason why it returns. Learn to avoid it and it will never come again. You feel disoriented because opf this obsession again. For both of these problems, you need psychological intervention such as counseling or cognitive behavioral therapy. I am happy to provide you such assistance online. Please contact me through customer care at www.healthcaremagic.com. Hope this answers your query. Available for further clarifications. Good luck.