My wife very frequently(almost daily) gets severe head ache and becomes unconscious sometimes and even though she travels in the same route daily sometimes she can't remember where she's, recognizes me by seeing the wallpaper on her mobile and then she becomes normal. A few months earlier due to severe head ache doctor had advised for ct scan and the reports are normal, for second opinion we've consulted another doctor and he also said that reports are normal, i can't see her in this condition, but unable to find the issue, help me to find it.