This was the point I was leading them to. Thanks! A billion people are vitamin D deficiency. Many are asymptomatic. Did you have a viral illness causing your

This was the point I was leading them to. Thanks! A billion people are vitamin D deficiency. Many are asymptomatic. Did you have a viral illness causing your symptoms and it got better? Was it the vitamin D? It is hard to say. Some supporting evidence would be you had a previously normal vitamin D level back at your old GP.