I went to my Gp with muscle pain flu like symptoms and fatigue. I've also gained weight and have high cholesterol. I had blood taken and some of the tests were for R.A and bone profile. About a few days after the surgery called to say Doc now wanted to test my Vit D . I asked why but receptionist didn't know . Can anyone tell me if this is something to worry about. I am a sun worshipper just back from my holidays so to me it's unlikely I'm deficient . Any thoughts would be greatly appreciated x