I'm a 21 year old female. I've been healthy my whole life, my only ailment is asthma, however I played college soccer so that obviously isnt too much of an issue. I have a 6 month old. A couple months after I gave birth to her, I lost 10 lbs. in a week, and my weight continued to plummet. It actually still is, im down to 106, I should be at 125. My OB did a test to see why I was losing weight, my TSH came back with 0.02.