Nothing here should be construed as medical advise and I don't want to nake this a habit, but in this case:
"Old infarction in the left cerebellum hemisphere mediobasal belonging to the current region of the cerebellar artery posterior inferior (6/40-44) from ap up to 3 cm, tranversal up to 1 <cm and craniokaudal scarcely 2cm size in each largest diameter."
That means there is an area in your cerebellum aprox 3 x 1 x 2 cm which looks like CSF/dead brain. This could be caused by a stroke/infarct either around the time of your brith, or later GIven that I don't have the actual images, other things which could look similar include congenital cysts.
Given cerebellum functions (see below) it is not obvious see how this could be the cause of chronic fatigue (no idea what ME means).
a quick search indicates that perhaps malaria could do this. NNItrogen intoxication/narcosis unlikely (more severe diving compliations are a different story).
CEREBELLUM: The cerebellum receives information from the sensory systems, the spinal cord, and other parts of the brain and then regulates motor movements. The cerebellumcoordinates voluntary movements such as posture, balance, coordination, and speech, resulting in smooth and balanced muscular activity.Mar 5, 2015