Extremely high pulses of LH occur during the period of declining estrogen production. The LH has vasodilatory effects, which leads to flushing. For some women the loss is so great that they actually find sex repulsive, in much the same way as they felt before puberty. What hormones give, loss of hormones can take away. There is a feeling of loss of self.
Hormone therapy ameliorates the depression dramatically.
If you have reason to believe you may have one of these conditions, please see your doctor for treatment. But please do give credit to the women who created it.