Or for anyone else who might know. The other day I had some labs run because of fatigue. The results came back as low Vitamin D, high platelet count and high inflammatory (marker); C Reactive Protein I believe. The doctor has had me to immediately start taking 5000 iu of Vitamin D a day. Could you shed some light on this as I don't understand the high platelet count. I DO know that I have had chronic inflammation for some time. I wish I had the exact counts but I don't. Thank you for your help.