Hi! I am new to the forum but have a question. I am a 39 year old mother of 3 who has been struggling with low vit D for the past 6 years. I cannot seem to get my levels up despite my best effort. My Dr doesn't know what to make of it. She has recently put me in 2 50,000 unit pills a week. Could there be an underlying health issue as to why my levels will not increase. Initial thyroid screening is always normal ? I have all the symptoms of fatigue, muscle aches, etc… I need some relief!