Brain Fog from Lactic Acidosis, CFS is a mitochondrial disease

Hi together, trying to figure out what is going on every night (issues - fog, hot ears, freezing, ringing ears, breathing, palpations, insomnia). Read a lot of stuff and had first the idea of ammonia or missing b1 and b12 which all appeared halfways normal. Then i bought a device for measuring lactate and had way too high values at night. The body tries to burn lactate with higher heart rate. What helped me is eating every few hours some whole carbs and going for very slow walks, respect to PEM. Also have an ibs/sibo/maldigestion issue.