Menopause and paresthesia?

I would love some input on my strange symptoms. 

I'm 50 years old. For many years, my periods have been very close together, very long, and with 2-3 days of exceptionally heavy flow. I know this weird period stuff is normal in peri menopause. Then, after one of these "normal" (for me!) periods in April, I didn't have one for 60 days - and when I did it again, for the first time in years I didn't have the heavy days. That was over 60 days ago and so far I haven't had another one since.

My FSH level in a blood test two weeks ago was very high - 117.

I tell you all this just as a little background - I already know I'm obvioulsy in peri menopause and nearing actual menopause. 

But here's the reason I'm posting. Starting mid-May, all of a sudden I started having very consistent paresthesia in my feet and legs - a mixture of tingling, pins and needles, slight burning, static sensation outside skin, pricking... no numbness. It has been with me every single day since then - 3 months now. It's worse at some times than others, but always present to some degree (and usually very annoying and concerning). It is definitely in BOTH legs and feet. 

I'm slightly low in B12 and hoped that was the cause - however, after 10 B12 shots over 5 weeks, I have no improvement. I've had various other blood tests, all normal. I had an MRI of my spine (all 3 sections) yesterday and it showed nothing. No MS lesions, no transverse myelitis lesions, no compression/stenosis, no disc problems, no tumors. Now I need to get a brain MRI and of course I'm concerned this one could show MS. However, doctors have told me - and my research confirms this - it would be most unusal for MS to present with paresthesia equally on BOTH sides, stay around consistently for so long without going away even briefly, etc... And I have zero other MS sypmtoms.

So assuming (hopefully!) that's NOT what it is, then it's becoming a real mystery. I've done some reading that suggests these weird tingling sensations CAN be caused by menopause - due to extreme hormone imbalance. Also, my hormones could have been out of whack for a long time what with all my irregular periods, AND about 12 years ago I had my hormone levels checked and supposedly at that time I had the estrogen level of "a post-menopausal woman." At the time my doc said that was a little odd, but ok, no cause for concern. Anyway, I say all this as a way to say perhaps I've been a little bit of a unique case as far as my hormones.

Does anyone think these symptoms COULD actually be attributed to menopause? Or has anyone had something similar happen to them? I've asked my doctor a couple times and she immediately says no, menopause couldn't cause this. I realize it's not typical, but is it possible? So far I have no hot flashes or night sweats, thank heavens, but maybe this is my own personal type of menopause hell?! 

Any insight would be so very much appreciated. Maybe I'm grasping at straws, but it DOES seem an interesting coincidence that all these issues have come up right as I'm going through this different timing in my periods, obvious continued hormone changes, etc... 

Thanks in advance for any help people might be able to offer.

I think I'm going insane. If this could be blamed on menopause, I would be SO relieved and could deal with it!!!

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