What are some causes or diagnosis for high platelet counts, borderline anemia, sev. vitamin d def, sev. b12 deficiency, and osteoporosis? i'm a 115pound 24yo female just trying to find some answers?

Your complexities go beyond the scope of this public medical education site. Your Vitamin deficiencies should be supplemented, but your picture raises concerns about an autoimmune disorder. See a hematologist ASAP. We may be able to organize this for you at our virtual consult site (www.connect@healthtap.com)

Diet. Thyroid . Steroid use. Anorexia. Excessive exercise. No periods. Platelets count? Iron level? Vegan or vegetarian -may have B12 issue - sources are animal . Vit D - need sunlight and supplemented food like milk Osteoporosis can be due to decreased Vit D/ calcium intake. https://www.nia.nih.gov/health/osteoporosis https://my.clevelandclinic.org/health/diseases/13350-thrombocytosis