Within the past year I have been experiencing frequent headaches, and mood changes. I was diagnosed with depression, anxiety, and Asperger s Syndrome this year as well. I have no reason to be depressed, and it all happened without warning, pretty suddenly. Is it possible there is something wrong with my brain? I feel a tingling in my head, like when a limb falls asleep sometimes too. I run a constant low-grade fever, that gets worse at night. I haven t had a head injury, so that s not it.