As far as runes go, I recommend using what are called the "hugrunes". They are considered runes of the mind, and include: Kenaz (guidance), Algiz
(divine inspiration), Mannaz (memory and mental ability), and Ansuz
(inspiration). They should be written on the chest primarily, or other parts of the body are acceptable, and should be written using a red pen or marker.
However, I have to ask this question. Have you seen a doctor? Magic is a good aid, but it should not be used instead of actual medial attention. There are many things that can cause the symptoms you describe, anything from an improper diet not supplying the nutrients your body needs, to an actual illness that should be treated.