Not noticed it at all since yesterday. I'm 14 years post menopausal so doubt there's much estrogen left at all. Most my problems are lack of it but not enough to warrant going on HRT. I'm on local for VA and managing well at the moment. I'll just have to wait and see if it comes back.
There's other worrying causes of these vibrations on Google, MS, diabetes, parkinsons disease, vitamin deficiency and damaged nerves, the list is endless.