What is pain above the vagina and lack of a period mean? ?

I have been feeling abnormally lethargic so i went to the doctor did tests and he said i was amemic and had a vitamin D shortage. A couple weeks after i had uncomfortable pain in my right ovarie then now its moved to like the top right above my vagina and is serious pain when i walk. Even when i dont walk it hurts. I also havent had a period for three months. What does this mean? Idk i it helps but ive been taking iron glycinate vitamin D prematel vitamins. My mom said tht when she takes iron she gets constipated. But ive been have like diarreah.