30yr old male count is 26 they put me on 50,000 iu my symptoms are fatigue ,legs and stomach hurt ,warm felling in chest ,lightheaded and headaches they did an mri on the brain a stress test and a ekg plus a bunch of blood work everything came back good except for low vitiamin d count can that cause all these symptoms and if so how long till i start feeling better this is my first week on 50,000 iu