It is a meno. symptom, but also......
http://www.anxietycentre.com/anxiety/symptoms/shaking-anxiety.shtmlIt says it's particularly noticeable at rest, or when waking up and many, many ladies here report this. I have a friend who had the internal vibrating in peri, but not post meno., so I think in meno. It's either fluctuating hormones, or (or very annoyingly) fluctuating HRT.
I know when i'm having a 'good' day with plenty to distract me that it goes away if I'm not using HRT. On the patch, it's when it starts to run low after 2.5 days. So I started to wonder.......For me, it's part fluctuating HRT, part anxiety and partly neuro. symptoms from MS (but the latter are usually spasms).
xxxx