For the last 3 months, I have had memory loss and sensitivity to light and sounds. Most recently I have been getting headaches and blurred vision and a sense of not really being here, kind of like I am in my own little world. I really can't concentrate much and when I try to think, nothing really crosses my mind, it's just kind of a blank out. This all started happening when I started having back problems and my doctor told me my discs were shifting ever since I was little. Any ideas?