5'4" 99 pounds HERE IT IS
You're just short.
You probably have cancer.
You're in the 1st percentile for BMI.
not even kidding. get checked out.
You're stupid.
If you were to see me, you'd think "hm he's kind of thin" but you wouldn't think "hey he has a low BMI he must have cancer."
I'm perfectly fine.
I also may've exaggerated an inch of height.
I haven't measured in a year.