How can I cure my hairloss?

by Desperate
(Colorado)

I have just turned 30 and over the past year or 2 have been losing extreme amounts of hair. I have about one eighth of my hair left. It is baby fine and I have to wear it up because it is thin and stringy.

I also have oily, acne prone skin which I have had since I was 13. My hair used to be waist length, thick and curly. I also get very tired in the afternoons. I eat great, take vitamins, and exercise about 4 times a week. I am thin and otherwise very healthy. I know this is related to my hormones, I just don't know how to fix it.

I am female but have thick black hair that grows on my legs. I eat low sugar, lots of fresh fruits, veggies, salads, seeds and nuts, whole grains, not much dairy besides natural plain yogurt in smoothies. What is up with me? I eat lean meat, although not a ton. I take an iron supplement. I cut out coffee, drink green tea. Why is my hair falling out by the handful? I am not on contraceptive pills. It started thinning in my early 20's. When I got pregnant it grew in super thick and shiny. I breast fed for a year and a half in which it was still pretty. Once I quit it fell out really quickly. What can I do?