Btdtgt as they say!
Dd2 was maybe 7? Whn it all started. We had the bloods, bone age etc. and she had what they said was premature adrenarche ( the hair and smell/acne) and premature thelarche ( boobs) but apparently not true precocious puberty.
In girls these odd premature hormonal things are almost always benign ( big warning though. In boys they almost always are not - so ealy hair / BO te before age 8 in boys is important).
What happened for us is, well, nothing was done in the way if treatment. She had a change if consultants and the delay and apathy of the 2nd ment us was too late , which angered me at the time but actually I'm sure was the best course of action.
She really seemed to have a normal primary school time. She wasn't the only 1 in a crop top bra in year 4 anyway and didn't start her periods till 11yrs 3 months, which strangely was the same age as her " normal" elder sister.
Now she's 13 and still a moody old cow at times - the mood swings just have gone one for ever!
Really the only need to treat precocious puberty is to preserve growth potential. The rest - hair, smell, moods, periods can be dealt with by good parenting and supportive help at school- look at the year 5-6 girls - many are very mature these days. dd2 did very much remain a little girl - she didn't become a proper teen or anything - she was just a an 8-9-10yr old with boobs and hair - didn't bother her or her mates. I have fond memories of a year 6 leavers amount trip for about 10 of her best mates ( and the families ) when they were rampaging around the campsite in swimming cossies for a big water fight- she had a very grown up figure and they were little girls (and she was taller then) but no one cared or commented.
Not sure if dd2 is short because of her hormonal issues - dd 1 is exactly the same height at 5 foot 1.
I do wonder if it's all odd genetics in our family as ds is 6 foot 1-2 now ( lol a full foot taller than his sisters) but had a relatively early puberty- with a fully broken voice at just 13.
Pm me if I can help further.