On-line survey of drug uses and side effects – including vitamin D
Ehealthme.com
The site does not distinguish dose size. Could be 200 IU ==> 50,000 IU
The site has entries are primarily for 2008 and 2009 – appears to have few entries for 2010
What is Vitamin D used for
Rickets, Vitamin Supplementation, Alpha-1 Antitrypsin Deficiency, Osteoporosis, Osteopenia, Selective Deficiency Of Iga, Supplementation Therapy, Vitamin B-12 Level, Preventive Health Care, Bone Density Decreased, Osteoporosis Post-menopausal, C4 Level, Rheumatoid Arthritis, Ace Levels, Deficiency Anaemia, Seasonal Affective Disorder, Aging Changes In The Bones - Muscles - Joints, Kidney Disease, Fatigue, Bone Cyst
Chart for Osteoporosis

Top Vitamin D side effects:
- Nausea, 2. Diarrhoea, 3. Fall, 4. Headache, 5. Pyrexia, 6. Fatigue, 7. Arthralgia, 8. Pain, 9. Dyspnoea, 10. Asthenia
Chart of side effects: Note that these are primarily people who had problems with vitamin D, not all people.
Fever (also known as pyrexia or controlled hyperthermia)
Dyspnea also spelled dyspnoea = (shortness of breath (SOB), air hunger)
Asthenia: Weakness. Lack of energy and strength
Following chart does provide some insight as types of side effect possible


Yet, a majority of links on the internet indicate that vitamin D REDUCES insomnia
See also Vitamin D Life
All items in category Drug interactions with Vitamin D 38 items as of Oct 2011
#0CF:Allergic reaction to vitamin D is rareBlog post at Vitamin D Life - Feb 2012