THINNING HAIR

I'm 25 years old and have lost over half my hair in the last year and a half. I absolutely blame the IUD I tried. But it has just been so hard on my self esteem and I am so self conscious about it. I had to cut it short. I've seen specialists and naturalpathic doctors....they all recommend rogaine. At 25?! No way. Too many risks. Has anyone else dealt with this problem?