The symptoms you describe as well as the lab test values parallel the symptoms I had towards the end of college. When you say white spots I assume what you really mean is white raised up hair follicles and particularly dry skin, the skin is dry and somewhat flakely and when you scratch it - it flakes and turns white, also the hair may or may not be growing at that particular spot. The hair and hair follicle issues may not be as noticeable for a female though... In myself I had insomnia, sensitivity to heat (i couldn't take a hot shower without a massive headache and increased insomnia), sensitivity to light and sound, twitching all over my body and eventual tingling in my feet, completely fogged mentally and more than the insomnia could account for, painful walking on my tingling feet and dry white patches of skin just above my ankles, at one point I even felt like my headache had extended to my spine. The whole thing was physical, emotional and mental torture of the most nasty kind.

In the end it turned out to be multiple deficiencies stemming from a primary vitamin D deficiency.

One needs vitamin D to stop the cycle and make permanent improvement.
magnesium (mag controls the sensitivity to light and sound as well as allowing for potassium absorption)
calcium will start going up when you get vitamin D - i wouldn't take much calcium until you get the magnesium levels up... since the calcium changes will give you a headache. Low calcium also causes sensitivity to heat (this is difficult to notice until you stop taking hot showers and find you feel alot better). Calcium and Sodium control temperature regulation in the body.

Vitamin D works together with Vitamin A, Zinc and Iron and Vit E to control calcium metabolism - there are other players involved of course but these are the primary ones that helped me. Vitamin A toxicity is lowered by Zinc and Calcium, while zinc toxicity is lowered by iron. Iron toxicity is lowered by calcium and zinc. Vit E reduces toxicity of Iron and Vit A. The multiplicity of deficiencies is caused by the fact that without calcium\vit D some of the other vitamins become disregulated to the point of toxicity and so they must be excreted until the primary deficiency can be resolved and then slowly built back up together. Vit A, Zinc, and Iron will help with dry skin and the 'white patches' - my hair at those spots started to regrow when i took the zinc\iron.

Vitamin A toxicity for instance is caused because it induces changes in the cell membrane that cause it to take in osmolytes, the cells becomes overly hypertonic relative to its environment and it swells up like a ballon if it is then introduced to a hypotonic environment it is extra susceptible to bursting. Zinc and calcium prevent this effect, the zinc and calcium allow the osmolyte taurine to be pumped in and out of the cell as needed. Without vit D one gets to the point of insufficient calcium, which causes higher concentrations of iron and vit A to became toxic so some of it is excreted and\or not as readily absorbed which causes zinc to be toxic and get removed as well. It's a nasty chain effect causing you to become deficient in many things to varying degrees. Ferritin and b12 for instance because they relate to the iron.

When this happened to me I was studying Genetics at Fredonia State, and so intending to be a research biologist by training - I've done tons of research on this at I have alot of references and if someone wants more information I can provide.