Hey, i have some rash on both of my upper arms and i had bone pain, and i noticed a small lump, which i can fell by touching it, but its not visible, i did blood test it was good, i had vitamin D deficiency, so could all these things can be caused from vitamin d deficiency?
Honestly i don’t know, but if you had blood tests done i assume you spoke with a dr who was unconcerned? i recommend asking to be referred to a dermatologist if it still concerns you.