I just learned I have a vitamin D deficiency. I have been prescribed 50,000 units twice a week. Blood tests revealed AST (SGOT) 49 which is considered high with expected results between 13-39. Also, my Alkaline Phosphatase is 32 which is low and expected to be between 38-126. I am 58 years old, 5 9 and 256 lbs. I take vit E daily along with calcium and a centrum silver. Also take Levothyroxine, omniprazole, and metformin. Please advise