For awhile now I have been having problems with my concentration, becoming confused easily, lingering headaches (sometimes very severe), and extreme fatigue. I have spoken with my doctor and they tell me that it is just exhaustion and stress. I am able to sleep for 10 or more hours on some nights and still feel like I am completely drained. I am unable to concentrate or focus my vision. I have a hard time following conversations and remembering what I said or did just a moment ago. At times I will hear people talking and cannot make sense of the words they are saying. I feel constantly "high" for lack of better term. I am lightheaded and disconnected. The headaches I get either begin in the base of my neck and wrap around my head to shoot piercing pain through my eye (these are most severe) or they begin as a sensation on being pinched or electrocuted on the top of my head (these linger for days or weeks with no relief from OTC medication). Other symptoms that I have include diarrhea, nausea, mood swings, loss of appetite, tremors in my hands, severe joint pain in my back, neck, and hands, and depression. I have had MRI's done and they did not show anything. My x rays of my neck show that there is no curve and my top 3 vertebrae are rotated sideways. A sleep study shows that I have mild apnea, but nothing that should cause me to be as tired as I am. I have also been tested for Lupus and it came back negative. The only medication I am taking is Clexa 10mg. Any opinions?