I'm losing weight and I don't know how/why?

I'm pretty scared. I've lost 9 pounds in the past 3-4 months. I've always been really skinny/lean. but I'm way too skinny now and I really need to gain that weight back. according the the CDC's BMI calculator: the BMI is 16.7 , placing the BMI-for-age at the 1st percentile for girls aged 18 years... Show More

I'm 5'9".

in early October I weighed 122.

in early December I weighed 118.

and I weighed myself today and I weigh 113.

Most Helpful Guy

  • Seems we have a case of the Freshman 15. That is under weight though. You may want to talk to a doctor if it continues at this rate or speeds up, just to make sure there isn't an underlying and more serious cause.