Modding on the Spectrum
If the levels of one or more of them are low, symptoms like fatigue or lack of energy can appear. Other factors like your sleep, diet and physical fitness also play a major role in this matter. Other causes for the symptoms include: constant stress, constant overstimulation and depression. The different causes can also occur together.
You can increase the levels of the vitamins and minerals by eating food that contains higher levels of these and taking supplements. Please consult your doctor before you take any supplements to get the right dose and, if you are taking medication, to make sure that aren't any bad side effects with your daily medication. If your thyroid hormones are too low, the doctor will prescribe replacement hormones to treat the Hypothyroidism.
In the linked article about vitamin D deficiency (see list above) I found a noteworthy passage about people who are more at risk for vitamin D deficiency:
People with darker skin are much better protected from UV rays but also need to spend more time in the sun than people with lighter skin to produce the same amount of vitamin D. Non-Hispanic Black people generally have higher rates of vitamin D deficiency. The darker your skin, the less vitamin D you make from sunlight exposure. People who are obese, those with osteoporosis, and people with malabsorption disorders like celiac disease or inflammatory bowel disease are also at risk for vitamin D deficiency.
I recently read that an Iron and vitamin D deficiency is more common among children with ADHD and/or Autism (I mostly found studies related to children):
Relationship between serum vitamin D and iron level in children with attention-deficit hyperactivity disorder
Iron and Vitamin D Levels among Autism Spectrum Disorders Children
If the deficiencies are untreated since childhood, then it's very likely that adolescents and adults have the deficiencies and experience their symptoms as well.
. I was thinking of trying CBD but my doc said it's quite expensive in the long run (at least where I live). He prescribed me melatonin instead (to help me sleep better and to combat inner restlessness). I haven't tested it enough to say that it helps because I take it very irregularly. I usually forget to take it when I'm too engrossed in something which happens pretty often 
(e.g. playing a game, creating mods or watching series/movies/YouTube videos).
