Vascular? melanin?: The dark brown lines could be melanin deposition. Is the blueness could be vascular such as Raynaud's phenomenon which may result in numbness in fingers and toes, as you have normal labs. Also, 60,000 IUs is a high dose of D. Do you take that everyday? For how long? There could be various etiologies of your symptoms and I recommend seeing your primary care provider for further evaluation.
Answered 5/24/2016
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