Numerous people.... Diabetics who are experiencing nerve degeneration of the extremities (something called Diabetic Neuropathy). Another group would be the elderly, who do loose sensation as age progresses. And lastly those with some sort of paralysis or peripheral nerve damage.
I think you forgot to add the rest of the question but the child will likely be tall and have brown eyes
Answer:
Periods for the first few years will be very unexpectable, basically it's never right on time and you'll have a lot of spotting, where you have a little blood at random times of the month but it's not you getting your period. Sometimes you'll skip two months or have two periods in the same month. It's not abnormal, it's like this for almost everyone who gets periods, just make sure you always have quality pads/tampons on you and a fresh pair of underwear. Also try and get liners (there basically just really thin pads with no wings or anything) for when you're spotting, so you won't have to keep changing your underwear.
Explanation:
Are there choices?
Otherwise if she-
Makes a chart
Finds healthy food she likes
Makes time to exercise