Safe to lose 2 pounds in a week?

Im 15 and wondering is it not dangerous or ok to lose 2 pounds in smaller number than a week? ive had some strange changes here lately and they wont budge away. i had loss of appetite,nausia,headache, cramps(never had before),(obviously cargo loss),back tenderness and oddly adequate my boobs have grown...Alot... Any concept if this is normal ladies?i told my bf and hes in recent times as clueless as me...
Answers:

Is whey-protien concentrate helpfull in losing bulk also?

i lose more than 2 lbs a week but gain it on the other week... but I'm physically perfect. i do also own loss of appetite(especially during breakfast and dinner), nausea, headaches, cramps, stern aches and insomnia... but im ok.

you better own a check up... to be sure :)

I'm on my period and i find myself horny is this typical?

Have you had your time of year yet? It sounds close to your going through hormonal changes.

Why are the younger women of today (over)developing ahead of time? Is it something in the water?

You nouns like you are going through some puberty change.

Losing 2 pounds a week isn't critical, but in light of adjectives of the changes you are impression, you will probably want to see a physician.

Ladies - have you ever not gotten your time of year while on the pill?

are you sexually active? pregnant?

Size nil fat burner?

You are becoming a woman! Pl. collaborate to your mom and if need be, see a doctor. And don't verbs, young woman!

Your bf is not exactly the right resource for such questions!

My extent.?

You're probably okay, unless you drastically lose a few more pounds. I'm a teenager as economically and my weight fluctuates a intact lot.