Malnutrition might be unlikely, but you mention the problems started as a vegetarian. This points to a strong possibility of Iron Defeciency, which can be fairl

Malnutrition might be unlikely, but you mention the problems started as a vegetarian. This points to a strong possibility of Iron Defeciency, which can be fairly common (but of varying severity) especially on vegetarian diets. You'd be looking at anemia and dopamine\serotonin dysfunction from it which could match your fatigue complaints. I would see if Spirulina does anything for you: http://en.wikipedia.org/wiki/Spirulina_(dietary_supplement) http://en.wikipedia.org/wiki/Spirulina_(dietary_supplement) it's a super source of iron and can correct anemia and there is research supporting several other health benefits. Also use a nutrition calculator on a few average meals and check the label on your multivitamin to make sure you arent missing anything else essential like calcium (multivitamins dont necessarily contain everything, they would be gigantic if they did). Don't follow a food fad just ensure you are getting every nutrient and avoid all processed\prepared food. Also, what is your height and weight? Do you have enough energy to exercise? You should let us know you aren't morbidly obese or anything like that. Also what time do you wake up and go to sleep? One thing that helps narcoleptics is resetting the sleep schedule by staying up progressively later each night until the sleep schedule slowly wraps around over the period of a week. This can reset your body's circadian rythyms in a more permanent manner and help with fatigue. If you try using Melatonin instead to reset your cyrcadian rythyms, don't make the common mistake of taking it right before you go to sleep, it should be taken around 4 hours before planning to go to bed. Vitamin D, SSRIs, and sleeping less helping all point to depression or anxiety and serotonin\dopamine dysfunction. Sleep deprivation basically has similar effects to an SSRI. Constant nasal congestion also points to this, because serotonin and the catelcholmines (dopamine and its endproducts norepinephrene and adrenaline) are the primary vasoconstrictors in the body. Vasoconstriction causes bronchodilation or opening of the airways which is why simple decongestants like Sudafed operate on norepinephrine. Spirulina could help with dopamine dysfunction due to its high content of L-tyrosine in addition to iron, for Serotonin you've probably heard of Omega3 fish oil which can help some. Numbness indicates poor circulation and\or B vitamin deficiency. It will hopefully reside once you have enough energy to exercise and you determine you aren't anemic or malnourished.