chiefbabysniffer, that sound so, so difficult 
I feel like a worn out record on this, but I am happy to wheel it out one more time for the benefit of anyone who is sunny about these awful, awful drugs.
I was on Triporelin (the most commonly prescribed GNRHa in the UK) for less than six months for severe endometriosis. It causes, effectively, instantaneous menopause.
I had night sweats that would soak through the sheets and wake me up
I would cry for hours, with no idea really why
My bones ached like they were in a vice
I would have hot flushes so severe that sweat would be visibly running off me, and I had to carry a change of clothes at all times.
I would lose my temper for no reason whatsoever, when I am generally a very even tempered person.
My periods never returned to normal, and neither did my fertility.
It is possible that all of this contributed to my early menopause, which led to a cluster of chronic, degenerative autoimmune conditions.
It didn’t even help with the endo, and I only found relief by paying thousands of pounds for private surgery. Before that, when yet another gynae had suggested I try it one more time, my husband broke down sobbing and begged me not to, as he couldn’t stand watching me go through all that again.
I would never support this drug being given to a child who, as R0 points out above, has mainly been diagnosed with failure to conform to sex role stereotypes. The evidence as it stands is that the benefit is unclear, which does not surprise me, as there is such a lack of clarity about what they are actually supposed to treat, and the risk of harm is too great.
On a lighter note, I Concur that JJ is not a reliable source of information on anything, given her troubled history with bees and her health.