My mother who has Alz is experiencing extreme fatigue, dizziness, and a burning sensation in her head in her frontal lobe region. She is adamant that the front and top of her head behind her forhead burns and feels like it has pressure. MRI, MRA, CT scan, x-rays show nothing abmormal. Any ideas/info? Doctors say they “do not know” why she feels these sensations. Thanks for any and all input.