There are lots of symptoms of Vitamin D deficiency. Some of them are bone pain, fatigue, muscle aches, muscle changes, mood changes, etc.
My notable symptoms of vitamin D deficiency...
Constantly having to clear my throat of mucus
Bone pain in my fingers
Poor immune..constantly sick (strep throat to bronchitis)
Low calcium (in particular my teeth turn yellow)
Leg muscle weakness
An easy test for low calcium is the chvostek sign. YouTube has videos on how to test this. My lips twitch like crazy.
I found this article from Dr Steven Lin - Vitamin D deficiency symptoms...
"The 10 most common symptoms of low vitamin D are:
Getting sick easily or often
Chronic pain (often in your bones)
Wounds that don’t heal
Bones that break easily